I have yet to see huge throngs of people begging to have their taxes raised. You apparently have, so please provide proof of this.
The taxes have been greatly shifted off the wealthy onto everyone else, so why should people want to increase taxes on everyone else further, instead of shifting them back?
Funny thing: the more the rich take the wealth of the country for themselves, the less the rest of the country can pay in taxes. The correct target for increasing taxes is the rich.
Now, some will dishonestly misrepresent that as 'stealing from the rich' and just wanting to tax the rich for their own benefit, but the facts show it's actually quite fair.