The US is afraid of a North Korea with one nuke and couldn't attack. The US can build as many nukes as they want but they'll still be afraid of just one.
Maybe you don't realise but this is a deeply political view reflecting your worldview of your country in the hierarchy .There are plenty of choke points in the 1st and 2nd island chain to interdict shipping bound for China. You don’t even need a carrier to do that.
CSGs would be around to make sure PLAN doesn’t go anywhere beyond the 1st island chain. A naval blockade is a very realistic prospect.
So is having all your LEO satellites shot down.
Almost certainly.Fair enough, it's probably that then.