I have unfortunately spent a lot of time among certain kinds of nutjobs who don't want to support Ukraine, and they generally tend to avoid highlighting Putin's responsibility and sticking to the talking point of "sending weapons is bad". If you haven't seen those trends, great for you, unironically, because their hypocrisy is pretty annoying.
It would be nice if we would be this loud every time someone attacks sovereign country and not only when we don't like an attacker.
You can say whatever you want but some people see it as west set up Ukraine to fight their war, commenting without acknowledging that is just ignorant. You know very well that no body supports Putin, just discussing different ideas. Plain old gasliting.
That's about the size of it. You can't even point out NATO war crimes or say that maybe peace would be good for Ukraine without being told (never asked) that you support Putin.
You can, just not in a thread specifically about Ukraine. It's off topic at best and really looks like whataboutism. But I suspect you know that already.