There's two interpretations of the parent comment:

1) China will get ASI and use it to beat everyone else (militarily or economically). In my reply, I argue we shouldn't race China because even if ASI is achieved and China gets it first, there's nothing they can do quickly enough that we wouldn't be able to build ASI second or nuke them if we couldn't catch up and it became clear they went to become a global dictatorship.

2) China will get ASI, it'll go out of control and kill everyone. In that case, I argue even more that we shouldn't race China but instead deescalate and stop the race.

BTW even in the second case, it would be very hard for the ASI to kill everyone quickly enough, especially those on nuclear submarines. Computers are much more vulnerable to EMPs than humans so a (series of) nuclear explosion(s) like Starfish Prime could be used to destroy all of most of its computers and give humans a fighting chance.