People put in diesel heaters in their EVs. I'd hate to be in an EV and turn into ICE sitting in the car when it's 1 C outside.
I'd much rather have a small ICE that does some donkey work like heating, air conditioning, lights, and hey, charging the battery when I can't be bothered stopping for an hour here and there or when people are running away from some zombie apocalypse and mass queueing at the chargers.
But I won't be popular. But that's ok. Coz the vegan salad you just bought was probably flown all over the world and trucked around the country.
I don't think I've ever heard of an EV with a diesel heater.
You're thinking of an EV from a ICE vehicle perspective. 99% of the time you charge your vehicle at home and you plug it in each night when you get home. The only time most people visit a public charger is if they're doing a road trip.