I had this conversation the other day, but my friend did make a good point in that he could seek asylum and retire. He knows the day he steps down and stays in Russia though that he is a dead man walking. He has too many enemies to stay alive very long.
Putin can't do much if other people aren't convinced that their least-bad course of action is following him.
You seem him calling on the Ukraine military to overthrow the government (which is probably not a great sign of how well his “demilitarize Ukraine” operation is going)? That option isn't available on only one side of the conflict.