Do you believe that the systems we have are for the benefit of anyone besides the ruling classes of the US? Are you comfortable enough that you do not actually care about the systemic injustices people experience under such a system? Regardless, Xi and Putin are not going to bring us liberation or they would be supplying free weapons and training to revolutionaries. The only countries that still do that these days are Cuba and the DPRK, and they only do that if you go to them and seek it out on your own, since they are ideologically anti-imperialist.
And if you really do want an example of Russia wanting to cause chaos in the west, look up Black Hammer, that group that was infamous for claiming to be socialist while hating Anne Frank.
That would be interesting. I imagine that if humans respawned after death it would feel like being knocked out with some people having amnesia or dreams between, unless it was so instant that there would be no experience between.