The world is aware that Niden enabled the invasion  

Crow did you know that Russian troops started to move to the area the week after Biden's pull out of Afghanstan.  Putin knew Biden would not stop him.  In fact Biden's policies emboldened Putin.  Biden's consistently appeasement and empty tough talk was never followed by strong action.  Lethal Aid never showed up, anti-air and ship capabilities were ne'er provided, pre-invasion sanctions were never imposed, and sanctions on Nord Stream2 were waived.   Biden took NO real action to stop the invasion, he even nice stated that Russia could take the Donetsk area.  Yu do remember Obama did not support Ukraine when Ru took Crimea.

Even after the invasion happened his help has been late and insufficient.  He has been so incompetent that other European nations have had security meetings and do not ask him to come.

Putin never would have invaded Ukraine if Afghanstan would have been better handed and support set t Ukraine well before the invasion.  Biden showed weakness and te world knows it.