You spend an awful lot of characters on this board to try desperately not been seen in agreement with Dems/libs. I don't know why. You're clearly not "far right" (like so many here.)
It is also the case that the pro-Ukraine movement was spontaneous and largely non-partisan and not an expression of "anti-Trump". Only those who'd already thrown in for putin were fully against it. Just search for "republicans with Ukraine flag pins" in your favorite search engine. When I did that I found the *Republican* chair of the Senate Armed Services Committee wearing one during the nomination hearing for Pete Hegseth just last month.
Because I'm a stickler for consistency...and I see the democrats as being more inconsistent than the republicans at the current juncture. I have a lot of issues with the Republicans, but at least it's not a series of moving targets based on whether or not one guy (Trump) likes or dislikes something.
That's what I see as the critical difference between Democrats and Republicans in present times. Republicans aren't under any misapprehensions about their opposition being limited to "just one guy" (IE: "If we just got this one person out of there, we'd have no more opposition"). Democrats do seem to be under that misconception.
To the degree where they'll regularly label certain Republicans as the "good ones" that they absolutely despised a few years ago. Nowadays, they almost speak fondly of Mitt Romney and John McCain...two guys they bashed like crazy not that long ago.
It's almost like they're under the impression that "If Trump were out of the way, the GOP would just revert to picking a bunch of squishes that we can easily beat". They see Trump as a "cause" rather than a "symptom".
To the other part
Something can be spontaneous but based misguided reasoning. Speaking personally, all of my friends/family that are staunchly 'pro-Ukraine against Russia' didn't seem to have that 'come to Jesus' moment until after it was already well-implanted in their psyche that 'Russia is the reason why Trump won in 2016'. They've definitely expressed the notion that "It's important to help Ukraine beat Russia, because Russia meddled in our 2016 election and helped Trump beat Hillary"
Which comes across as "It's important to help the people who are fighting against the people who stopped us from getting what we want, domestically"
As far as it being non-partisan, "anti-Trump at all costs" folks on the left and John Bolton/Lindsey Graham types on the right, isn't exactly what I'd call a durable form of bipartisanship. At best, it's a strange bedfellows situation where two opposing factions want the same thing, but for very different reasons.