By clinging to American primacy through force and intimidation, Donald Trump is, ironically, undermining US global power. A saboteur trying to subvert US interests from the inside could hardly do better than what he’s accomplished through sheer incompetence.
It’s not about Russia emerging the global winner, at least not at this stage. It’s about destroying America’s global hegemony, weakening their position in NATO, and distracting them from any Russian efforts to rebuild, and expand, the Soviet Empire.
China would probably emerge the big ECONOMIC winner from this, but Russia would be the big political winner, after controlling Europe. They’d probably be satisfied just splitting the world in two, and giving Asia (and manufacturing) to China, and keep Europe (and banking) for Russia, and share the Americas for exploitation.