Is this the only way that situation gets resolve or are there any alternatives? Why is the kid a bully? Why does he feel the need to copy homework? Maybe the classmates should group together and seriously injury the bully first, would they be in the right if they did so? How do you know the bully will actually harm the kid and doesn't just want to scare him?
You can make any situation a simple good-evil answer by drawing arbitrary boundaries around the situation. The propaganda this thread is mentioning enforces those boundaries and potentially prevents people from discussing the real underlying problems. Doesn't mean the outcome or conclusion is any different.
The situation would be different if e.g. Ukraine had invaded Russian territory after the invasion of Crimea, or had done broken armistices beforehand, or there had been a mass killing of ethinic Russians in Ukraine. There has not been. This means long before we can talk about Russia maybe feeling threatened by NATO expansion they need to stop the war they started.
There is no nuance here. Russia felt that for whatever reason an attack-war was warranted and couldn't even be bothered to come up with a believable justification. The fact that other countries have done the same thing (e.g. over allegations of WMD) changes nothing here.
USA/west could have made concessions that weren't really concessions (taking Ukraine NATO off the table) before the 2022 invasion. Those concessions may or may not have worked. We're now just supposed to ignore that fact and pretend that it never happened until some point in the future that may never take place?