I think being optimistic in this situation is actually harmful. It really is worth considering looking for a shelter because Putin has already proven with this

I think being optimistic in this situation is actually harmful. It really is worth considering looking for a shelter because Putin has already proven with this war he does not care about anyone's life from any side. And if he is to lose this, to him it may even be as good as being dead. The optimism reminds me of the time we first found out about the Coronavirus and we went on with our head in the sand until it hit hard.