1: https://en.wikipedia.org/wiki/Corporate_average_fuel_economy...
Which means no one is getting your tax dollars to buy vehicles (though there may be some infrastructure or manufacturing grants for companies).
[1] https://www.congress.gov/crs-product/IF12600
[2] https://www.irs.gov/newsroom/tax-credits-for-individuals-wha...
If the taxes someone would otherwise pay are going to their electric vehicle instead, somebody else has to make up the difference.
So yes, other people are getting my tax dollars to buy electric vehicles. It just takes two steps rather than one, if you want to look at it that way.
What if someone declines a promotion and thus doesn't increase their income and pay more taxes? Is that also taking your tax dollars?
Sure, yes, if the government doesn't follow PAYGO[1] (which they almost never do) and offset tax expenditures (tax incentives) with reduced direct spending and government debt increases then maybe, some day, some portion of your tax dollars may get indirectly spent on this.
But how do we really know? Do we know what other secondary effects will come from these tax incentives?
If electric cars catch on maybe the government will get more revenue somewhere else (there are North American manufacturing requirements to qualify after all) or have to spend less revenue on something else (surely burning oil must have some effect).
Or maybe the person getting the electric vehicle then uses it to make more money and pay more taxes than they would have before (unlikely but possible).
But, directly, they're getting back their own money. The real issue with the credit is that it disproportionately favors people who already make a lot of money (but taxes also disproportionately tax people who make more money so maybe that's fair).
It doesn't matter. Everyone else is now paying for all the federal government services they consume. Other people are paying for that. It's literally that simple.