Centrists do love avoiding "ideology" and then being cowards in front of any moral question and position. They just reinvent new ways to show the Disco Elysium quote:
Moralists don't really have beliefs. Sometimes they stumble on one, like on a child's toy left on the carpet. The toy must be put away immediately. And the child reprimanded. Centrism isn't change -- not even incremental change. It is control. Over yourself and the world. Exercise it. Look up at the sky, at the dark shapes of Coalition airships hanging there. Ask yourself: is there something sinister in moralism? And then answer: no. God is in his heaven. Everything is normal on Earth.
The world is is kind of fucked either way. If MAD has broken down and the nukes are actually flying the entire planet will be destabilized as various environmental systems break down. More nukes don't help and I can't in good conscience say that I should make the decision or know what would be best for humanities future. The capitalist empire can't really sustain itself either way if nuclear hellfire has scarred and destroyed the world. There would only be global hatred for the Americans if they nuke the chinese like that.
I can understand both decisions from the Chinese though. It would only be fair, after all, for the chinese to retaliate.