He was polarising Figure
One condemn him, other praise him.
Face it, he made Real Politic
and prevented a nuclear war between USSR and China in 1968
Alone for this, i praise him (together with several millions Chinese)
Nope. The Soviets did it alone. They had a crushing advantage in nuclear megatons BUT the Chinese had the population bomb. They threatened to mount an invasion of Vladivostok and the Russian far east. And even with 30 000 nukes of varied sizes, the Soviets were not entirely sure they could stop human waves, millions anfter millions of Chinese light troops staging the biggest guerrilla in the history of mankind. Go nuke
that: not only a genocide, but perhaps not enough nukes - in raw numbers.
So the Soviets in August 1969 punished the Chinese in a symmetrical way to the March 1969 incident. Then they stopped right there and proposed a ceasefire at a meeting in September or October. Unfortunately this scared the living shit out of the Chinese, who feared a decapitation strike: nuclear or not. For two months - and unbestknown to even the Soviets - the Chinese were really, really scared. Things cooled down by Early November.
And meanwhile, at the same moment, Nixon was trying his hand at the Madman Theory. He was toying with SIOP, B-52s, DEFCON levels - to try and scare NVA into nuclear brickmanship. Bad luck, the NVA didn't took the bait - but the Soviets did, and became really scared.
Bottom line: at some point early October 1969, Nixon scared the living shit out of the Soviets, who in turn scared the Chineses.