Although you can really heat your home with bitcoin mining, this is not the most efficient way to produce heat as its consume a lot more energy than a normal heater.
And in particular "Bitcoin will not survive the coming winter". Both of these are wrong.
About this, it is not going to the winter all over the world at the same time. Bitcoin is not even mainly mined in Europe, and it is going to be mined anyway in other places while it is winter in Europe and Europeans are living their gas crisis with Russia.