Re: Republicans...
Regardless, it needs to stop.
There's not even a small sign that that is on the cards in the near future. Like the bully with a rich and well armed dad at school, they know there is little that can touch them unless everyone gangs up on them at once. That's why they they have people everywhere ensuring enough strife that that never happens, but that's also why they don't like the EU very much.
The EU is presently showing that it cam possibly become a threat (by, for instance, being a bit stubborn about pesky privacy laws that get in the way of US companies making serious money) so the US is not very happy with the UK Possibly bailing on it because that would remove their leverage (it's more or less the only argument I have found *for* a Brexit, being non-UK).