> We've sufficiently developed electric cars, but they're not nearly the majority.
Just to further support your point, sufficiently developed electric cars' batteries still doesn't have the energy density of fossil fuels, so they can't replace any and every use case.
For example, can we carry or generate the energy these cars requires to move unimpeded like ICE vehicles yet? Or, did we improve the procedures and materials so these cars can be extinguished faster, more reliably and securely then their previous generation counterparts? Or did battery recycling methods became cheap and efficient enough yet, so we can reuse these batteries and at least not increase mining on our planet? Etc. Etc.
I'm not against renewables or electric cars, but even in their current form, we need to solve many problems to make them more practical and even less impactful when compared to their ICE counterparts.