> To get Chinese policies enacted in the US, people like that would have to be convinced that mass-producing electric cars was more important than [...] keeping gas and ICE car registration cheap (makes electric less competitive)

It's worth noting that car registration in Shanghai was staggeringly expensive before electric cars were a possibility. That's just a continuation of existing Chinese policies; it obviously helps electric cars, but that was no part of the intent of the policy. (I assume the intent was some combination of reducing traffic times and reducing pollution from exhaust.)