I'd say most wars have complex roots and I'm not saying you should never fight a war.
But Germany in the 1930's has been used as an excuse (certainly in the West) ever since - and it's led to a lot of awful outcomes.
Two where "bullying" was successfully dealt with were the Falklands and Kuwait 1990 - but there you had clear casus belli, a clearly defined aim and a limited, conventional opponent.
I can't see China in the same light. No voter will support a major war against China over a few islands, nor will anyone sane risk an all out war against them. Are we intending to invade China? I can see we could evict them from a few islands but what if they then take over Taiwan? Are we ahead or behind?
It's very easy to call for military action - and on this site there is more than average support for using the military - but I always think of Isaac Asimov "violence is the last resort of the incompeternt"