Would you believe that the US policy of continually expanding NATO, combined with a military coup of the democratically elected Ukrainian government in 2014 are more to blame for Putin attacking Ukraine? I wouldn't blame Biden. I'd blame Clinton, Bush, and Obama. But hey, you weren't actually asking to be informed about anything that wasn't CIA approved corporate news talking points. You just wanted a pithy straw man joke. (Side Note - Burning karma to put some truth where people might see it is the only good use for the stuff.)
I believe a citation is needed for the claim that the 2014 Ukraine revolution was a "military coup".
Anyway, it's not like the US demanded that Latvia, Poland, etc. join NATO. They are sovereign nations who hated Soviet occupation, and when they got a chance, they joined a mutual defense organization to keep Russia from re-invading them. If Russia didn't want NATO to expand, it shouldn't have been so aggressive towards its neighbors.
I would only believe that Putin is to blame for Putin attacking and brutalizing Ukraine. And Syria. And Chechnya. And Georgia. Sorry, apparently I’m brainwashed.
Funny you should mention Georgia, since they declared war on Russia. Every single one of my factual claims is just an internet search away. And yes, (though you said it in jest) I do believe you are brainwashed.