Yes, there absolutely is: the side preemptively invading a sovereign nation, annihilating cities, and murdering civilians. A transgression that's an order of magnitude more deplorable than any justification you can cook up.
Regardless of the causes, and unlike in previous wars, you can see the atrocities with your own eyes if you care to look. Thousands of people dying, cease-fire agreements being violated, evacuation corridors being shelled, millions of lives shattered.
> And if you want to see actual shelling and starvation of citizens, search for atrocities in Yemen, Gaza, Syria, Libya, Afghanistan, Iraq, etc., all directly committed or supported by the west.
Great, let's sanction the bastards responsible there, too. Evil is evil.
> even allowing protests in Ukrainian cities they're controlling
What a joke. Given how protesters have been treated in Russia and Belarus, do you really think they would tolerate this if the Russian army wasn't vastly outnumbered and overstretched? Dissent will be quashed brutally if the invasion succeeds.
> If you consider the NATO expansion over the last few decades around Russia, it was completely sensible for Russia to preemptively take aggressive action.
