Unfortunately right now the middle class is being stuck with most of the bill on a PER-CAPITA income basis. And considering the wealth gap between the rich and the middle class is SUBSTANTIAL, it means we're essentially having relatively poor people (middle class) pay the bills of very poor people (lower class).
When you zoom out a little (and remove irrational emotions about the topic clouding your perception), it's easier to see the disconnect.
Also no need for the line about irrational emotions - lets have some proper discourse please.
If you are a business owner and most of your income comes from capital gains, still not possible to pay anywhere near 22%. Rate on capital gains is 33.3% (20% federal + 13.3% state).
It doesn't negate your point, but for Tesla specifically, no vehicles bought in 2020 or later are applicable for the federal tax credit at all (the page you linked acknowledges this). Raising the $7500 amount wouldn't benefit any Tesla buyers.
An entirely self-interested Tesla buyer would first want the per-manufacturer limit on the tax credit removed or increased. Then maybe have that credit amount increased.
Do you vehemently oppose the US federal electric-vehicle tax credit of up to $7500 until the day you decide you'll buy a Tesla, when you'll switch to staunchly demanding that it be radically increased? (https://www.fueleconomy.gov/feg/taxevb.shtml)
These all represent your taxes going to support things that you are unlikely to benefit from personally, after all.
If you remove the impact to other people from the calculus of where you'd want tax dollars to go, then I think most people would opt to enrich themselves rather than not. But that's just not how the world works. The reality is that any given person's tax dollars are used on all kinds of things that will never directly benefit them, or even their families or even socioeconomic class.