Of course it is, so long as you don’t lazily reduce it to whataboutism. The point is that this isn’t grounds for Nuremberg-style trials, because if it was, nearly every major nation is gonna have to go through it. Like it or not, they probably won’t go along with that idea, so it’s a non-starter.
You see, whataboutism is really only worth calling out in super low risk environments, because the potential future consequences are irrelevant. When we’re talking about putting the world powers on trial, the future consequences are now worth considering. Get off reddit, it’s poisoning your ability to reason.