You can bet all the Free Trader Communist Globalists are ready to drop a pantload if Britain bolts the EU. You can also bet those meetings in Davos this past week has been to find ways to convince/bribe/threaten/whine “protectionism” to keep the Brits tied down to the EU
The crumbling of Free Trade Commuist Globalism would be a huge stimulus to the economy in the US and abroad
The EU is much more than a free-trade zone. If it were only a free-trade zone, it would have very few opponents.
Oh, and BTW, the vast majority of opponents of free trade are leftists — especially unionists.