Then it's still incorrect because that wouldn't break the blockade, which would be enforced with radars and anti-ship missiles. Also, it would not be smart for

Then it's still incorrect because that wouldn't break the blockade, which would be enforced with radars and anti-ship missiles. Also, it would not be smart for the US to try and mine PRC ports: how many bombers and ships would they lose getting that close to the coast? I actually don't think it's achievable, but even if it was the cost in lost lives and materiel would be ruinous. All to achieve "stopping the PRC from shipborne trading off its seaboard", except that the PLA has a very large number of demining vessels, and if the USN hasn't sacrificed all their ships into the missile meat grinder to try and get some mines placed off the Chinese coast they can interdict shipping at other locations like the Straits of Malacca, the Red Sea bottleneck, etc. Chinese civilian shipping can be stopped in other ways that don't involve sending the US Navy on a suicide mission.