Moreover, when the US went to Afghanistan, I certainly didn't judge Al Qaeda for using "terrorist" tactics like IEDs, or non-uniformed combat, in violation of the Geneva convention. They could have gone with honourable conventional warfare. Then they'd be honorable corpses relatively quickly.
In the end, when war comes, compromise is inevitable. You might regret the consequences down the line, but without that compromise to begin with, you might not have had that future.
But I think that's besides the point. You'd be a minority in Russia too if you opposed the war in the Ukraine right now.
I strongly dislike the lens of morality here, because especially in this case, its coming from those who are insulated from the... Extenuating circumstances the Ukrainians find themselves in.
Furthermore I belive that most would do the same given similar circumstances. Historically speaking, it wasn't THAT long ago that the West aligned with the rather brutal Soviets to defeat their nazi greater enemy.