I know UK was never in Schengen, I propose that we rejoin both the EU and join Schengen.
I have waited HOURS at passport control at both ends for the Rotterdam/Hull ferry and it is ridiculous. If someone is ok to be in France/Germany/Netherlands then they're OK to be in the UK - we're not special. The increase in efficiencies would be enormous!
Never mind all the other economic and social benefits being part of the EU would provide, as well as the commonality of regulations and standards - which benefits us allas consumers, never let big business fool you that "red tape" is bad - it's regulation for the greater social good!
Unfortunately the UK population/electorate are too xenophobic and racist for this to happen.