Why are you going on about Blair? Very weird. And fifties is older than me so yep: old. This is always your issue, everything is about personalities with you.
We’ve seen in Ukraine what happens when a military designed to make one guy at the top happy domestically tries to actually go to war. If they’d actually been fighting NATO instead of a bunch of plucky farmers and office workers armed with stuff the west was about to throw out it would have been even worse. Chinas military, like Russias, is mostly for show domestically and untested. That’s what happens with dictators: everything is geared at telling them what they want to hear. Training and maintenance are half arsed if done at all, proper judgements are kept away from leadership if they’re bad news. We saw it again and again.
The idea China and Russia and India could just Zerg rush the planet is a nonsense. And they’d be relying on inferior supplies with much much higher failure rates rather than western and Taiwanese tech. It’s just a total non starter.