China is doing what any other country would do under the same circumstances.
One would hope that they evolve in their tendencies to run interference against the U.S. for the sake of nationalism, but it is likely that they will not. They will continue to a pain when they can.
As to threats to U.S.security, I believe that is what our nuclear deterrent is for. China is more of a threat to financial security than anything else at this time.
Taiwan is not the trip wire that it once was. I do not see any international support for any confrontation, nor do I see much national support either.
It looks to me like unification is the goal and not just talk anymore. It will be years before that is remotely possible however.
Status quo for now.
Speaking of interesting, you might also want to check out post #13. I am not worried about Red China alone, I am much more worried about the growing Eurasian Alliance which includes Red China, Russia, the EU, and a number of Middle Eastern countries to include Iran. Red China's entrance into Latin America isn't comforting either.