Biden and the Military Industrial Complex left Afghanistan because they were hell bent on starting the Ukraine war. They knew that once talk of adding the Ukraine to NATO would force Russia to respond.
More like Putin saw what happened in Afghanistan and was emboldened to move in. There’s a reason he did what he did during Obama, and then Biden, but not during Trump.
Adding Ukraine to NATO and other countries was hardly anything new some people were chattering about. There was once even talk of adding Russia to NATO.