Yeah? Good luck with that... You cannot bring an ICE vehicle in CA unless it meets stringent CA Carb rules. The retrofit can get pretty expensive but some cars (classics and exotics ) are worth the trouble. As I've said before and you've pointed out about EVs, it's not just the powertrain being in question, it's the entire supply chain.
Sure, there will be plenty of ICE vehicles operating in CA after 2035, but no new vehicles. So what will it look like in 2045? With avg ownership of 8 years and avg vehicle lifespan of 12 years, in 2045 you can expect 50-80% (?) of vehicle driven will be EVs.
With those numbers you can expect many fewer gas stations, garages, parts stores and the price of gas to double, further reducing the incentive to own an ICE vehicle. That simple.
"Only" 12 states adopted Section 177 of the Clean Air Act? Lol.. that's nearly half the US population!
https://www.transportpolicy.net/standard/us-section-177-states/
We can argue about how long it will take America to transition to an 80% EV park, but the foreseeable future is not in your camp.