This is how such things work. In this country, workers organizing so they weren't powerless, each getting screwed and 'expendable', used to be a crime punished violently.
When workers got that right, it provided some balance to the owners' power and the middle class thrived, both those in unions, and not in unions benefitting from unions.
Unions are under attack for two reasons, one because the lower workers' incomes, the richer the rich are - in terms of short-term gains in percent of income and wealth.
Second, because the party of the rich, pursuing power for its base, wants to cut off the funding for Democrats.
The way these work is:
When unions are powerful and attacking them politically costly: Republicans pay lip service to them, while secretly looking for any way to harm them.
When unions are less powerful: Republicans increase the attacks and propaganda against Unions to make them less powerful.
When unions become a shadow of their earlier number and the Republican propaganda has made them a pariah among may voters: go for the kill. End 'collective bargaining'.
That's the stage Republicans think they're at. If it works, the middle class, already so weakened by right-wing policies that have redistributed huge amounts of the wealth from the middle class to the top 0.1%, will be even more gutted, largely reverting policies back to the gilded era before FDR if not before the 20th century - at the very time American workers face unprecedented competition from the global poor - a competition wanted by the rich who WANT to drag America's workers down in income.
Too bad for society, when the pie shrinks - the rich will own a bigger and bigger share.
That's the battle - the American middle class, versus a broken, poor, American oligarchy.
This has nothing to do with the good of the people or the fiscal health of government, and everything to do with Republicans pursuing monopoly power and restributing wealth.