I don't like that there is an income level cutoff. Hear me out... a single person with an income of $299k living in Nebraska has way more expendable income than a single income family with 4 kids with an income of $299k living in the bay area.
In order to bypass the made in America restrictions, they take the commercial fleet credit, then pass it on to you.
People could have multiple children, debt, sick relatives, etc.
Maybe that 300k person in Nebraska had 20 kids or something. Using the area as a measurement is complex
If it's truly an incentive, incentivize everyone. I know people who make $1 million/year who will argue over $10. $7500 would absolutely affect their behavior even though they can afford an EV without it.