Not true: Wind turbines generate more energy in Western European winter - when we need to power electric heat pumps - and solar in Southern European summer - when we need to power A/C units.

Plus it does not matter if 2% of the time we need to fire up fossil backup generation.

The problem is not when everything works as intended, the problem is when nothing works as intended, like during emergencies when the wind is too strong (so the turbines shut off to avoid damages) or during winter in the southern Europe where the panels are covered by snow or it rain for some consecutive days.
I understand that we cannot plan only around emergencies but we need to consider them.

Plus it is easily possible to build seasonal heat storage for multi-family houing units. Basically big tank with water and lots of insulation.

LOL. Listen, here (Italy) it is already impossible to build big tanks in the middle of nowhere (basically unused fields) to avoid that rivers and streams overflow when it rains just a little more than usual causing millions of Euro of damages (last time, in September 2025 in my small city only it was 48 millions) and you want to build big tanks near houses ? Good luck with that.

I am tired of that disinformation.

The only disinformation is thinking that renewables are ready to be a drop in substitute for oil and gas. They are usefull, no doubt, but we need to solve the problem of storing all the surplus they generated. And as for now there is not really a solution that work on a large scale, which is what we need.