Both sides are bad, no matter who is currently the aggressor.
Now because there is aggression, the aggressor has an obligation to stop it, and we have an obligation to force a stop in the conflict as well. But that doesn’t make the other party less Bad in this. Both sides killed a lot of innocent people, both have inhumane ulterior motives and both are supporting further escalation. But ofc if there’s only one party doing the fighting, then that’s the party that acutely needs to be stopped.
This distinction is very important to me, because you are not suddenly the good guy because you stopped killing civilians. You are just not actively doing war crimes which means we don’t have to intervene because of you anymore, which is at least one less reason. But you are not holy because “this year it was only 300 war crimes”.