One thing I'll note that I think is under-discussed in this, is that even when we read their opposition to aiding Ukraine charitably as you have here, their opposition still reveals their preference for authoritarianism and their distrust of/distaste for democracy. Among the opponents to aiding Ukraine, the ones who aren't genuinely pro-Russia want Ukraine to surrender because they think there's no way Ukraine can win, even with support from the west. They think Russia's authoritarianism gives it a unique military strength that democracies can't compete with.
Of course, as history and this war have shown, that's pretty much the exact opposite of reality. But they don't want to admit that they've been proven wrong already, so they simply deny reality. And some of them, as Ukraine continues to achieve battlefield success, begin to shift mentally to actually being pro-Russia. And with that comes the necessary "Ukraine are the real nazis" type shit that becomes necessary to justify their pro-genocidal views.