You do realize that there are other scenarios, such as North Korea launching nuclear strike into Silicon Valley or New York? Would you prefer that? or North Korea failing quietly like the collapse of USSR?
But you can't sell prospect of a nuclear war against China, because people have iPhones made in China, so they know it's absurd: why would China want a nuclear war? A threat has to be believable to sell to people. So we talk about North Korea. Nobody in the US has bought anything from North Korea: they are a dark, evil, and mysterious people, and it's easy to believe they can be also suicidal.
(Yes, the North Korean regime is evil: they're so evil that they make China look like boy scouts. But they aren't suicidal.)
There are other reasons why going to war against China wouldn't be that advisable.
http://www.businessinsider.com/navy-chinese-microchips-weapo...
https://www.wired.com/2011/11/counterfeit-missile-defense/
http://www.cbc.ca/news/politics/fake-parts-in-hercules-aircr...