Now “sensible” is an interesting word.
I guessing that you’re finding the 2 options a little ‘extreme’. Well leaving the EU I think it is fair to say, would be an ‘extreme position’ to take (although imo rather sensible)
So I’m assuming that you quite like the EU but are unhappy with the direction in which it’s going, right ?
Well that case I’m sorry to say that imo you’re buggered mate. Because the EU isn’t going to change direction, it’s going to carry on going in the same direction – further integration, more harmonisation. There is absolutely no chance whatsoever of the EU returning to what it was in the Common Market days.
I reckon your best bet is probably to vote for the Labour Party candidates. Although I’m sure that you could waste your vote on some neither here or there candidate who will do nothing, if you feel so inclined.