The Russians know the western feudal elite won’t leave them alone even if they became a hermit kingdom. Not democratic enough, not homo friendly enough, too resource rich, too big, too etc etc. One day in the future it’s entirely possible that persecuted Christians in the west will seek sanctuary in Russia.
They will not become a hermit kingdom, though. What they will do is form coalitions with the majority of the world that does not want to be lectured and invaded by the west and longer. Those days are coming to an end -- and fast.