I don't believe I am able to pay enough to make a difference.
I believe that if all people of my income paid more, we could make a difference.
I support all people of my income, including me, paying more taxes and opposed me alone paying more taxes.
The evidence you've provided does not provide significant support to your conclusion.
Here's what WOULD support your conclusion: If given the choice between someone who would increase taxes for people of my income or keeping them the same/lower (ceteris paribus), I voted for the latter. If I'm voting for the former, that straight up contradicts your position.
It does little good to send people thousands of dollars if when that dries up, and it would, there are no above board jobs to go back to.