Biden is a lame duck president with NO PUBLIC MANDATE and subterranean approval rating, he got ousted by his own party before the election for being mentally incapacitated, his defense against a Justice Department inquiry is he's too old and senile, his party just got BTFO in a national election. No NATO or NATO proxies have ever launched long range missiles into Russia in living memory. How is this guy 
fit for office
STOP EATING CRAYONS AND DO YOUR FUCKING JERB. "Senile old man sends young people to WW3 out of spite"
I don't think all Ukrainians are Nazis, but their government and military are Nazi aligned, have deliberately targeted civilians repeatedly and will absolutely use these missiles to continue doing that.
It's not better for them to be able to do so.
They also aren't "vaguely" NATO aligned, they're a NATO proxy.
There is a categorical and practical difference between trading or dispensing military aid versus having a military alliance with nukes involved. That difference is what has kept the war from spilling over for 2 years.
The "Nazis are the ones doing the aggression" line was fully accurate up until the country was attacked as a whole, instead of just the separatist-claimed areas. Instead of the Ukrainian far-right doing ethnic cleansing, it was everyone in Ukraine at war. And Russia was well aware of that: the entire SMO and its ramifications revolve around ducking under the bar that NATO was neither being attacked nor doing the attacking.
The Kursk incursion was not surprising, nor was it different in kind, nor was it a bridge too far, nor was it really consequential. Rocket strikes are the same way on all counts.
The proxy war is still fully a proxy war (much less direct than the Korean War was), and Ukraine still has no hope of winning.
What in the world is this pointless moralization of the conflict? The Russians have warned repeatedly that American weapons striking into Russia is a red line and they will retaliate, just like they warned that Ukraine joining nato is a red line and they retaliated for that.
Moralization is all liberals and ultras know how to do