Most countries need their electrical heaters and cooking stoves as well during the night.

Yes but lights are turned off, factories are turned off, trains aren't running and many other things as well. And most people don't cook during the night.

Still not enought to power all cars during the night, given the charging time.

Anyway that isn't an issue, because only a few elected ones can charge their Teslas on their private parkings.

The cars don't need all night to charge, and most people don't need a full charge every day. Unless you claim that with EV people will drive radically more, you will see the same thing where most people don't use their cars that often and thus they don't need to charge that much.

And lots of people with a car don't actually park on the street. Its usually an outside parking spot or a parking garage. Both can add electricity rather easily.

And simply remaining on ICE is just about 100x dumber. I prefer walking, biking and trains to, but cars will not go away, and transitioning those to EV.

I have seen study that suggest its not as big an issue as you make it out to be. Please show me the study that has realistic assumptions that claims it will be a huge problem.

Right, so we just need to burn natural gas to meet that new demand. We can get that from ... oh.

For peak load, yes, but base load has a lot of nuclear.