Because the upside (with barely single digit margins if it exists) is mostly China and no one else being able to compete at that scale.

Something like skin in the game. US (low), EU(moderate), China (high), Global South (high with caveats to leapfrog but financing crunch always there)

Renewables need front loaded funding compared to Oil & Gas which are the incumbents that make them sticky.

Otherwise is a lot of US consumers were rational and only price minded they would've run TCO calculators on EV vs ICE for day to day use even without subsidies