The Bolt starts under 20 grand after rebates. There is exactly _one_ gas car that cheap, and it'll probably be gone after this model year.
Besides, beginning to not sell gas cars five years from now isn't exactly "leaving most of society behind". Used gas cars will be available for decades even in that scenario, which is what most people buy anyway. But we can't even agree to do that piddling half-measure because I suspect you are right; we'll piss off the Nazis, and they vote.