A lot of people seem to think respect comes from not causing trouble.
Is that why India is so respected around the world and not at all ignored?
You want respect you take it.
American got its respect through the 2 world wars and the victory in the Cold war as well as it's economic prowess.
China right now is not respected, not because it is doing these things, it wouldn't be respected anyways, regardless of them. However once China solves these disputes in a manner favorable to China that will change.
Also this isn't a dynastic war where IF China went to war with say India, it's not like the Philippines and Vietnam and Japan will declare war, or vice versa.
China can easily take its time and pick them off one by one, IF that is the intention, though I think the current Chinese army wants to do the bulk of the battle on the negotiation table.