Why so? Sure, it would be a nice world if no country was a military powerhouse, but that's not the world we live in. If the choice is between the US or China being the military powerhouse, why would you pick China?
There are plenty of us who will be forever bitter about this period in history of US dominance. You may not have noticed from your garden in Virginia, but entire countries have been bombed to rubbles and and entire populations killed or forced to migrate. Still continuing too. In that sense, we’d much prefer actually good and just people ruling the world, not US or Russia or China etc.
Edit: Fix ambiguity.