No way Biden or anyone could've prevented that.The fact that Putin invaded to begin with is a testament to the failure.
Ukraine was no military or economic threat to Russia -- and would not have been as a NATO member -- after all, the Baltic states are already members and they're no threats. Nobody poked the bear.
What Putin wants is to make Russia a world power of the first rank once again. Like it was when the Communists ruled. Like it was when the tsars ruled. And the world cannot allow that.