You are starting to sound a bit deluded
Deluded and blowing smoke? Wow. I wonder what was the stuff you put in your tea? Enough of the ad hominem.
QMV does not apply in most areas and in any case the UK shouldn't find it hard to find allies in the council to veto anything. Thus far it's still not been required to enact legislation that it opposed.
I suppose you already know the EU doesn't actually have a free trade agreement with either the US or China? Switzerland does.
What's that got to do with it? The EU doesn't consider China a market economy. How can you have free trade with someone who doesn't compete freely? Oxymoronic if you ask me. And wasn't Switzerland forced to cede sovereignty to the US when it came to banking secrecy for suspected tax evaders?
That aside the EU trades heavily with China, the US and India (Germany exports far more to all three than the UK) under existing WTO rules, which means few areas are excepted. TTIP is supposed to mean free trade with America but is pretty much dead in the water on both sides of the Atlantic. In Europe because of the secrecy that the Americans demand, in America because an anti-trade Congress don't negotiate, never, no sir, get out the gun boats.
When it comes to who we should improve our trade relations with, I'd much rather the EU started to focus on how a more equitable trade with Africa can benefit both sides: let us please stop dumping surplus agricultural production and thus putting African farmers out business.