So tell me, which US cities are you going to swap for that "immense superiority in nukes"? It always amazes me that US commenters never seem to think that nuke

So tell me, which US cities are you going to swap for that "immense superiority in nukes"? It always amazes me that US commenters never seem to think that nukes can go in both directions at once. Certainly the US has lots of nukes. But so do the adversaries. China, so it appears, has only about 300 nukes. I once did the exercise of using only those 300 nukes on the US's largest 300 cities. By the time I got down to city number 300, I found that that city was only a quite smallish town of roughly 10,000 people. In other words, a mere 300 nukes would completely destroy the US. Russia has 10 times that many.