You said "directly responsible," which means all or most of the blame in a given situation.

No it doesn't, it means exactly what it says. The actions of the US directly led to the war.

I just said Russia was solely responsible, because they chose to invade.

Completely oblivious take. Tell me why did the US arm and train ultra rightwing groups in ukraine well before the war started? Going as far back as 2013. What was the goals there exactly? You should take your own advice and read a history book cuase the US has been destabilizing regions like this for a while. And every single time it has led to war in the region where they did it. So yes, the US is directly responsible, because this is exactly what they wanted.

just stop licking Putin's boot

Is this supposed to mean anything? I've never said a positive thing about Putin in my life. Two things can be bad at once, trying to boil everything down to "Russia bad, NATO good" is completely disingenuous. Furthemore it's detached from reality. Both are bad, a critque of NATO and the US for the part they played in making tha war happen isn't absolution for Russia invading and escalating it to war.

And the reason all that is important is because, like I said, this isn't anything new. The US has been doing the same thing for decades and will keep doing it as long as people like you keep ignoring it and spouting such nonsensical takes.