Is it possible that post-Brexit, people who only hold UK citizenship could be at a disadvantage when compared to people who hold UK and a.n.other EU citizenship ?
I'm vaguely considering a post-Brexit where visas or work permits are required for UK citizens to work in the EU, meaning employers (in particular US or Asian) would prefer a dual-national over a pure UK one.
Looking forward to a robust discussion 
Chatting with some colleagues, they all felt it would be a situation which simply cannot develop. But at the same time, they also conceded it may be out of the UK control. (Which rather sours the whole "taking back control" mantra).