What are they going to attack with? This isn’t 1940. They have no guns because only their army is allowed guns. OK so they have 2 1/2 million army guys with guns, we have 3-400 million. Beachhead? Where? With what?
The realities of modern warfare leave very few options. USA vs CHINA isn’t going to look anything like Russia/Ukraine. I assure you it starts with EMPs and space warfare and goes from there. After EMPs your pretty close to all out nuclear war and nobody wins. We’re already in a financial war, frankly it makes more sense to just continue that until somebody loses or gives up or whatever happens.
EMP is way overrated as a threat.