How can you possibly say unions grow the middle class? The fact of the matter is unions cover a very small % of the workforce. There are a lot of middle class people out there who are not a part of unions.
It's a given fact that unions has bent companies to their will giving workers a wage that is far outside their value. Not the least of which unions make it near impossible to fire an employee who deserves it.
Given that that happens and that it's a fact people do just fine without unions. What is the point of them anymore? I don't see hwo you can make the argument that the small % of people under unions somehow make it so that all people get equality?
The world is different these days. People would leave extremly quick from a company who forced workers into unsafe/unfair working conditions.
I'm not a fan of unions except for trade unions and for inherently dangerous work, but I'll explain why I think even unions I don't like can possibly be a force for growing or at least stabilizing the middle class.
We start with a reasonably stable and prosperous society after World War II. Labor supply and demand are reasonably in line, and tend to reinforce each other. Two things tend to tip the balance toward the employers' side - improved productivity, and improved manufacturing equipment. The former means you need fewer employees to produce the same amount of goods OR can produce more goods with the same amount of employees; both mean more profit for resource owners directly (by cutting wage costs) and indirectly by lowering demand for (and therefore cost of) labor. As long as these displaced workers find productive and useful employment at similar wages the equation remains balanced and the society's wealth increases. The second thing, improved manufacturing equipment, forms a big part of the first, but also allows the resource owners (employers) to employ less skilled (and therefore cheaper) labor. The whole point of manufacturing equipment is to allow more product to be produced by fewer and less skilled workers, after all. But all in all, the system is pretty stable as the job losses are fairly slow and the increased wealth of the resource owners (and thus society) allows the displaced workers to expand into new endeavors. Also, the increased productivity benefits employees too, because since their output is now more valuable the resource owners can afford to increase their compensation with less (or no) economic pain to themselves. In fact, with a tight labor market the employees may receive more of the benefit than do the resource owners. Since the employees greatly outnumber the resource owner, even giving the employees the lion's share of the increased productivity gives each employer a proportionally much larger share than each employee gets, so everybody's happy.
Now two additional things tend to tip the balance toward employers' side much more quickly - outsourcing and increased immigration. Outsourcing allows the employers to cut costs drastically. Prices fall too, of course, but prices are set principally by what the market will bear so costs drop more quickly than do prices. On the employees' side, outsourcing reduces demand without reducing supply, thus lowering wages. It is like increased productivity in that respect, but fundamentally different in that part of the benefit flows to that country now doing the work. Thus while the resource owners have increased wealth, the society as a whole has decreased wealth (although this is partially offset by the lower cost of goods.)
The second thing radically tipping the sale toward the employers' side is increased immigration. These new immigrants are used to having less (else they would not immigrate) so they are willing and even happy to work for lower wages and benefits. This lowers wages across the board, which is good for society's wealth and for employers but not so good the middle class because if their competition is willing to work for less, then they too have to work for less. There is no long term alternative. The effect is much, much worse for illegal immigrants, partly because they have much worse alternatives (and thus work more cheaply) but mainly because they are coming in such numbers. Immigrants (especially illegals) also send money out of the country, thus removing that wealth from our society rather than circulating it and stimulating more wealth production. Legal immigration enriches a society because it brings a new group of workers willing to work for less (which illegal immigration also does) and thus increases productivity but also because it brings new ways of looking at things and thus drives innovation. Legal immigration is also regulated to the number of new workers our society needs, or more properly, the number of new workers it can handle without unacceptably depressing wages. Illegal immigration on the other hand is inherently limited only by opportunity to get here and can easily reach the level of unacceptably depressing wages. And where legal immigrants quickly become roughly equal to citizens in expectations, illegals must always remain less ambitious because due to their illegal status they are less able to compete openly and because if there is not a substantial benefit in hiring illegals, no one would take the risk. Thus illegal immigration always tends to depress wages even if the society can absorb their numbers.
Some will argue that immigrants (or just illegal immigrants) only do the "jobs Americans won't do" but this is demonstrably false. Very few jobs performed by illegals were created only when the illegals showed up. Take a local chair factory. Up through the 90's it employed legal workers and paid them mostly based on quantity of product (of satisfactory quality) produced. Those working production worked damned hard but made good money, especially for someone with little education but with some sense and a good work ethic. Most production workers made over $20/hour and had decent benefits. Then the company began to hire illegals for a flat $8 to $10 per hour with no or few benefits. Quality and output (no longer tied to compensation) plummeted, but the company still made more profit. Those laid off or fired workers who previously made over $20/hour had to find other jobs, and most had to take jobs where they made much less. Thus the new employees were not really in the middle class, and often the displaced employees were not in the really middle class. Everyone got pushed down into the upper lower class, or at least onto a lower rung of the middle class.
Now comes the part where a union
might help preserve the middle class. Had the plant unionized during the seventies (and it did not because the employees knew they had a good thing going and because the union used thuggish tactics of intimidation, not realizing that these are people not easily intimidated by waving a handgun or throwing rocks through windows) then the company could not have used its flimsy excuses to fire workers, not without the whole plant walking out. Replacing a whole workforce at once is much harder than replacing it a bit at a time, and the publicity would have been very, very bad. Firing a few workers at a time brings little adverse publicity and allows the new, cheap workers to learn their new trade by watching and working wither those who know it.
The only real caveat to this is that the company might well have moved the whole plant to Mexico or China, thus removing even more wealth from our society, had it been unionized. It's quite hard to know at what point that will happen unless it is actually happening.