DBWI: No Sino-Soviet War

What if cooler heads prevailed so China and the Soviet Union didn't start to maul each other in the early 70's? Would the US still have been able to win the Cold War if it's adversary didn't get involved in this conflict?
 
The Soviets bogging down in that "endless" guerilla war showed that they couldn't keep Eastern Europe and the non-Russian parts of Soviet under control any more.
 
Less isolationist Warsaw Pact maybe? I mean those pictures of childrens burned skeletons in Beijing pretty much destroyed their nternational appeal. Breshnev might also stay in power for longer although even without the war a coup is likely.
 
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