You're right to an extent, but personal use electric vehicles are still a step in the right direction. Even if all the power generated for them comes from coal, which is another argument people make against them. I would wager that EV buyers are more willing to look at smaller electric vehicles like ebikes and scooters as compared to the average person.

If all our vehicles were electric, it would be much simpler to transition to greener methods of electricity production. ICE vehicles don't have this kind of flexibility.