@Lightning Lord Rule I think if someone in NATO approves the attempt on Putin they are absolute retards. I think Putin is very level headed and moderate in his approach to Ukraine. Someone replacing him would likely be much more aggressive.
Who says the Robots need to run 400k years? We have mini nuclear Reactors now, in a thousand years they could be the size of a home generator. I'm not staying it's easy, but there are ways.
You misunderstood what I'm saying. At our tech level it's not really feasible. How ever another hundred to a thousand years androids caring for a massive ship full of fertilized embryos and food could spend a few generations taking us to other worlds to populate.