Don't think it would be in our best interest. If you're talking about economic sanctions in order to protest about ethics, that would only work if every country did that and since no country wants to lose out, no country will stop trading with one of the largest economies.
Secondly, I don't think Trump has the power to pass any constitutions or laws on his own as he has to get through the republicans etc. Pretty doubtful that anything he says is going to happen.
The US is a huge country. A lot of trading relative to their external trading happens in the country itself.
So the UK doing this would just hurt itself.
Should there be economic sanctions against the USA if Trump wins? watch
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