I'll go even further with this, despite much of what the leave side claimed being proved to being factually untrue, many of the posters on here come back with "ah but that's not how people feel".
Again, people might feel that immigration is too high. But it depends on the person doesn't, people in Boston in Lincolnshire might feel that it is to high where EU migrants make up about 10 % of the population, but in the North East people also voted out on immigration where as a whole EU immigration makes up 2.5% of the entire area. Whose "feelings" do we regard as the most important?
Feelings are not the same as facts, and this has been the thrust of the campaign, the leave campaign wouldn't have been able to win with using facts so it used emotional appeals, unsupported opinions, and outright lies.
Lets take the immigration debate, now the favourite position of the leave campaign was to say that our services were "cracking under the strain" yet 87% of Primary school children got their first choice school in the UK last year and 80% of secondary school children. Now this is less than previous years, but we knew in 2010/2011 that there had been a baby boom, not just by immigrant mothers, but over all and that extra school places would be needed. Very little has been done to prepare for this, yet 87% of primary school children got their first choice. Also the planning is easier to do because the majority of children of immigrants in this country, were born here, there are a far smaller number who come over with their parents.
The same goes for the health care system. We know that a 10% increase in immigration in an area causes a 19% fall in waiting times at A and E and for elective treatment because of the healthy migrant effect. Up thread people talked about not being able to get appointment's with their GP, fine, but this isn't because of immigration its because we have failed to train more GPs and actually have a crisis in retention of young doctors who go abroad because of the better pay and conditions .
Housing too, people blame immigration for the lack of social housing, yet only 9% of social housing is inhabited by immigrants and this is overall immigration not just EU, and shows that in fact immigrants are under represented in social housing as they make up about 15 % of the population ( despite that most people think its about 30% so most people "feel" immigration is actually higher than it is). Further more, EU immigrants don't jump the housing list either, despite what people "feel", its not true.
The same goes for benefits, EU immigrants are under represented there, but people feel that they are coming over to claim benefits. Despite the fact that even HMRC published data which showed the in their first year EU immigrants contributed £2.5bn more to the exchequer than they received in benefits, that works out as an £833 contribution for every EU immigrant in the country. But people feel that they are here to scrounge.
But when one side just uses people's feelings in order to get what they want it becomes very difficult to refute it with facts.
It goes further when we get to the classification of leave voters, the only people I've heard say that "all leave voters are racist and thick" are leave voters putting those words in others mouths. Now it is obviously going to be the case that there was a proportion of the leave vote that was racist, not all leave voters were racists, but all racists voted leave.
It goes further when you consider the post truth practices employed by the leave camp too. Cameron's speech at the British museum where he talked about the EU helping bring peace and security to Europe, was then reported as he said "If we leave the EU WW3 could happen" is totally factually incorrect, but was believed by many. The same goes with Cameron's deal with the EU, the right wing press and the leave campaign derided it as weak, when it was actually a far better deal than any other EU country has got, but because it was reported that way people believed it. The same with the dismissal of expert opinion, the post truth approach was to shout "PROJECT FEAR" or "SCAREMONGERING" when in fact most of the economic analysis was very clearly impartial and based upon several different scenarios. The further post truth apporach here was to accuse all those who didn't agree with their opinions of having vested interests with the EU, so any university or think tank, or even the BBC who has ever had an EU payment could be dismissed, the attempt to pass of EU payments for Erasmus as a vested interest for Oxford Economics to be biased towards the EU were quite simply laughable.
Essentially it boils down to this, we have reached a period, with Trump and Brexit where politicians have stopped basing their campaigns in fact and instead are appealing to feelings, emotions and perceptions rather than what is really going on. Telling people they were right is always going to be a vote winner.
Perhaps this was the biggest issue for remain, they tried to fight feelings with facts.