It’s a given too that a Chinese space station will have nuclear weapons onboard that will be able to strike anywhere in the world within minutes. When that happens they will say, “YOU LEAVE CHINA SEA NOW!!”, and we will have no choice but to obey.
Our SLBM subs in the Western Pacific can hit any Chinese city within minutes, and if they ever get round to it, the Chinese could equally deploy missile subs off both coasts of the continental US. Nuclear subs are way cheaper to maintain and far less vulnerable to attack. Space stations are sitting ducks.