Titfortat isolationism helps no one.

We should learn from China and its New Silk Road / One Belt One Road initiative that aims at tying Europe, Asia, Africa into one land-based market.
In contrast our TTP, TTIP, Nafta are moribund. UK leaves EU. Stupidity at its most high.

No man is an island, no nation either. If we cut off ourselves from the world it will be pretty lonely.