It really says something about how broken US politics are. Removing these bans would benefit basically everyone who doesn't own or work for a dealership. A quick google search says roughly 1M people work for car dealerships (a number that is kind of staggering actually, and is likely that large because of how much money is artificially funnelled into it due to the regulation). I suspect we can neglect the number of people who own dealerships. With 300M people in the US, that's 1:300 in favor vs against this regulation. And yet because the real votes in the US are cast with dollars, not ballots, this will likely never change.