I’m not sure what your point is. Working lower-class Mexicans can’t afford a new vehicle, much less a bunch of solar panels as well. They are not going to transition to EVs within your lifetime.
No idea what counterpoint you’re trying to make. Whatever it is, it certainly isn’t applicable to the lives of people living in poor third-world communities.
Electric cars are fundamentally better because developing country could just use some of the excise tax they charge on cars to buy solar panels. And the power from solar isn't subject to price shocks and interruptions like oil and gas are.