since all predictions are that least 40% of the UK population will vote leave you may wish to consider that perhaps the vast majority aren't rabid xenophobes/racists but have genuine concerns about the sheer level of net immigration and added to that the increase in population that is causing due to the also increased birthrate plus basically lots of people feel ignored / marginalised and removing one layer of control over them is appealing.
I voted remain due almost entirely to the economy as the EU will "attack" the city of london and whilst i despise so many in the financial sector it is so vital to our emasculated economy we have no choice but protect it plus our only successful manufacturing industry is car making (though we own non of the companies

) which will have serious worries if we leave the EU and will start to look at the possibility of resiting plants