Just look at how much technology has done to reduce emissions from the internal combustion engine in the last few decades! All while increasing power tremendously! Why isn't this good enough to allow us to continue to have the choice of the ICE operated vehicle? Why does the federal government have to decide when we've come leaps and bounds already?! This is a (semi) free country.
I think you'll still be able to buy a new gasser until they outlaw them. Right before covid there were articles saying the new charger/challenger would be built along with the old charger/challenger like they're doing with the ram and Fiat 500. They'll still build them but dont expect development to continue
