we could do the same, they run are utilities, power water ect most of are transport, we could impose stuff on them as well, don't think we would get a trade war either way, neither side could afford it,and more importantly how could the EU even think about it as there already shrinking market they would have lost one of its biggest contributors and markets.You would think so but the gloves will be off if we come out and Europe will play hard ball.
It will cause even more instability for the euro zone, then they go to to a trade war, that wouldn't help them in the least.
Dont know why people think they are going to all of a sudden think they are going to stop trading with us, if there market was expanding yes maybe , contracting don't think so.
This shambles isn't( The EU) just about trade hasn't been for years , that's just part of it,