The US could never beat China. Just think how many Chinese restaurants there are in the US, and many of them probably employ military "sleepers". Another problem would the the electronics in the US weapons - isn't much of it Chinese? Then of course there is the problem of rare earths - the Chinese control that market, and the US needs a good supply of rare earths for its electronics and weapons.
There cant be any winners in a wars between U.S, Russia and China.All 3 countries are too big and they have nuclear missiles, therefore even if someone of those 3 starts WW3, it wont end up well for anyone.These big countries having nukes keep this status quo.
I so much disagree with you that there can't be a winner. Even China and Russia knew for sure they are no match to the USA Military. Yes, they too have Nuclear Missiles but USA has stronger and more sophisticated Nuclear defense system. US Military budget is twice more than that of Russia and China combined. Most of the China's military hardware are just what they managed to steal from the USA over the 25years of international espionage made possible by the weak leadership of Bushes, Jimmy Carter, Clinton, and Obama.
Now, America is back and modernizing its military hardware. What China stole will soon be rendered obsolete. We didn't pull out of nuclear treaty for nothing, in fact, Russia and China are currently jittery. All the years of holding America down with one hand through some useless treaties, while developing their military with the other hand are over.
Any direct confrontation with the USA will lead to the end of China and Russia.
America is expert in Espionage, Cold Wars, and Open Confrontations. I don't see any country anywhere in the world as credible challenge. National pride may tell you differently but the reality is there's none.