> Nobody forced Russia to invade a sovereign country (or to consider itself the rightful owner of those lands for that matter), that's entirely their fault.
Alas, the world doesn't operate based on the moral principles you imply, but cold hard realpolitik. Actions have consequences in the great power game between nation states.
> And it was mind bogglingly stupid, as we can see a few months in, with the massive losses to their army and economy.
The Russian economy is doing fine, business with India and China is thriving. "Massive losses to their army" I believe is far from accurate. I'll be greatly surprised if at the end of this, Ukraine isn't economically destroyed, geographically devastated. Territories lost will remain lost, and the deaths of so many people will have been for nothing more than furthering the geopolitical and industrial interests of the main instigators.