What are the decent arguments for leave though?
Larger numbers of immigration suppress wages, and this doesn't only affect unskilled, ~minimim wage employees but also things like trades; for working class people these were traditionally a reliable and effective way out of poverty, with plumbers, electricians etc in more or less predictable demand with good pay. A large influx of workers with these skills has suppressed wages significantly and spread the work for individuals thinner. Now for people like me - the aforementioned metropolitan liberals (lol) - this is great; we get cheaper services and we get to say "hey, look at all these great migrants, coming here, working hard, paying more taxes than they receive etc". Similarly, low wages at unskilled jobs keep priced down - also good for me. So yeah, thumbs up for immigration for me. But then, I don't work a minimum wage job whose only rises come when Osborne decrees it so, nor am I Dave the would-be plumber seeing my plan for my future massively altered in a negative way because the spark apprenticeship I did for however many years has been devalued a bunch.
I said on a previous page that I don't think that long term constitutional issues should be affected too much by short term political realities, so it annoys me a bit when I see people hand-wave away the £350m line by saying "that's a lie! We get some of it back as farm subsidies in Wales and, besides, do you really trust the Tories to spend that money wisely if we got it back?!" I mean, firstly, I'm not thrilled about the government subsidising farms in Wales anyway, so if they gutted that, good job BJ. But the idea that the EU is protecting us from our own electoral folly by taking our money and redistributing it is not only a bizarrely self-flaggilating view but it's also one framed entirely by who won one election last year. Are you (general you, not you you) ever going to trust a British PM and Chancellor to spend that money, or is it always better in the hands of the unswerving paragon's of the EU?
Which brings me onto what I think is my last point and it's one I've banged a gong a bunch about before so I shan't dwell, but generally I'm in favour of localism and the EU is the antithesis of this. It's effective as a forum for pan-national issues, of course, but the problems with large kind-of elected bodies like this is the larger the electorate, the larger the bodies of people who end up disenfranchised become. Yeah it's PR (mostly) but a law either passes or it doesn't, ultimately. This same issue plagues every election, but the smaller the electorate, the smaller those disenfranchised groups become. Furthermore, the commission isn't elected by any reasonable definition of the word.
Now, my answer to all of these is "the benefits outweigh the negatives" but a) that doesn't mean the negatives don't exist and b) I don't think Dave the plumber is an idiot or a racist or a fascist for not wanting to remain a part of a union which has had such a significant, negative impact on his prospects.