Economic poverty and lack of prospects (while labelling those who vote for something different to this as racists).
I'm not sure there has been any lack of this really. Indeed, many have argued that the rise of populism is a direct result of the 'left behind generation' who have lost out in the globalised world. I would question quite what it is about Brexit that makes people think the situation will change?
Believing your views are better than theirs (and again that they are racists).
Again though, I think this has an element of basis to it, not least because of Gove's ridiculous notion that we shouldn't believe a word 'experts' say. That's become a catch-all phrase to dismiss anyone that has given an issue consideration if their conclusion doesn't match the one wanted by leave voters. I think we can all agree that evidence and or at least detailed consideration are ideal when it comes to thinking about a decision, but there is a distinct feeling that such things are dismissed in favour of back of a fag packet ruminations and an urging to trust them coz experts are rubbish. There isn't really a weight of evidence suggesting Brexit is a good thing, is there?
Blind to pressures in communities caused by increased population size.
This is the crucial thing - population size. We've discussed this almost to death, but I've made this point what must be dozens of times now. The way our government operates, small towns would be in trouble if they had a jump in population from anywhere, whether another part of Britain or from Bulgaria. The problem isn't where the people come from, it's the heavily centralised way government money is spent, meaning that local councils have very little flexibility to adapt to population change. They are also burdened by extremely restrictive planning regulations and NIMBYism, which has meant house building has been too low for a generation. These are all things the government has the power to fix without worrying the EU at all, but they've preferred to pass the buck and pin the blame on foreigners rather than on themselves.
Possible undercutting of wages by immigrants.
As per before though, whenever this has been analysed, it hasn't been shown to occur. What is/will happen is that those with low skills will suffer in the labour market, whether because of competition from abroad (offshoring jobs overseas), from machines or whatever. The answer to this shouldn't be to bury your head in the sand and hope it'll be okay, it's to make much better efforts to ensure people have skills, not just when they leave school, but throughout life. Again though, that would require a government to take responsibility, and they aren't. Even now, the amount of attention given to adult education is non-existent.
Lack of availability of social housing to people who at the same time witness people who seem to be more recent immigrants given said social housing.
See above about house building being a planning/NIMBYism issue. Regards to your latter point, that simply isn't true, and indeed one of the concessions Cameron secured that was sneered at by Farage et al was to bar new EU migrants from accessing welfare for a period of time when they first move here.
Reluctance of the media to discuss these issues and labelling of those who want them discussed as, yes you've guessed it, racists.
The media haven't discussed these issues full stop, and I'm afraid to say they aren't the medium for such issues to be discussed, largely because they're far too complex to be boiled down into a 1,000 word article. I know because I've had to do it, and it's hard to boil a 100 page paper down into a few hundred words, and then compare the alternative perspectives, create a human angle and so on, all in 1,000-1,500 words.
The thing is, you need an open mind for these things and not to dismiss opposing points of view as being 'Googled', and there is a lot of evidence to suggest we increasingly exist in an echo chamber and seek out 'news' that confirms our point of view. Even on here we've probably had more diversity than many places, but I doubt that many have changed their minds a great deal.
Refusal of the media and liberals to discuss the issue of the current radical form of Islam that is in our communities and the politically correct labelling of anyone who would liked it discussed as...racist.
That's a very different issue though, and I'd hate to think we have jumped out of the EU because of radical Islam.
The fact that those who are preventing these things being addresses are often reletively comfortable in their own communities and don't have to directly deal with any of the above themselves and that if they did we night see some of their own predudices or nimbyism coming out of the woodwork
That's politics though isn't it? Very few actually live a 'normal' life, but I will say that from the demographic profiling of the referendum, it seems that remain voters have much more exposure to migrants than leave voters. I quite agree that when you have exposure to things, you tend to regard them as less scary, which is a great thing.