I do realise (but cold war had actually different underlying reason).You do realize that the Cold War started because the UN hasn't ever recognized Taiwan as a country and tried to give Taiwan to China in the 50s. Do some research, the UN is the bad guy. They won't ever do what you are saying.
I'm saying the 'todays' UN, or at least US and EU and their allies should ensure Taiwan is established as separate, independent country. Otherwise it is just political play.
Just playing a good guy and declaring Taiwan will be defended without actually giving them solid support to define their independence and visibility on international arena is an half assed effort made to keep status quo, not to help Taiwanese people to be safe in future as well. And adding some export limitations to China will not help other nations, not even US in a long run. Decisive actions on the still democratic nations around China is something that would establish the balance, but that is not happening, unfortunately.