The only good another war, a war with China, could give America is an End-to-City-Centric-Power-Politics in the United States; e.g., they do not nuke corn fields, but rather raze cities. Could we end welfare? Could we break the back of Black Racist Power? Could we beg China to nuke the largest city’s in Democratic party hands. I can envision a world where after a war, the United States is devoid of Socialists and Democrats in any politically meaningful numbers. Maybe Trump can make a deal to nuke SF, LA, Chicago, Huston, Philly, Seattle, Madison... got to keep Cleveland though;)
There will never be a nuke launched in anger by a nation state. We could however get nuked by a rouge NGO after the collapse of a nuclear govt. Think Pakistan.