As much as I'd like that regime to disappear, I wouldn't go so far as to invade Russia. Putin's nuclear sabre rattling is obviously bullshit when it comes to Ukraine, but backing them that far into the corner with an invasion is probably one of the few things that brings a real nuclear risk. I'd be more for the "measured" response of hunting down and eliminating any Russian assets found outside Russian borders, perpetually until the Russian people chose a leader who is capable of living in civilized society.
The Russians also committed a lot of heinous crimes. If you want to bet, place your bet on how many people will die in a nuclear fire, not will it happen or will it not.