http://www.independent.co.uk/news/uk/home-news/brexit-latest...
But perhaps you have other data that supports your case?
If you re-read the above you'll see that I didn't claim to have data on the matter. I'm perfectly open to the idea that a large share of the leave vote is anti-immigration (although that sentiment itself has a broad range of meanings from intolerant to reasoned), but my point was to highlight the perception of leave voters as being generally xenophobic members of the working class as being inaccurate or at the very least, a broad stroke of the brush. Through discussing the vote with the other leavers I know, not once was immigration mentioned as a concern, and we all work in average-to-senior software roles, not Dave the van man who rants about Polish people coming for his job.
Your anecdotal evidence is not very useful in a reasonable discussion, and it might be more interesting to have a data based discussion (if you have some data).
>Through discussing the vote with the other leavers I know, not once was immigration mentioned as a concern
You seem to be a bit obsessed with backing everything with data. Do you want me to make a survey for the people I've spoken to? I'm not trying to say "immigration is not the issue and I have proof!", I'm saying that immigration isn't the issue for everyone, and that there are people in the main HN - reading demographic (and more than just me and the 5 I know, although I'm sure you're going to ask for a citation) that A. Don't match the image in your head and B. Didn't vote the way they did as some kind of attempt to lock out immigrants.
Your suggestion that discussions can only be had by providing data is just not true. If I were trying to assert a claim large enough to need a sample size then sure, but I'm not.
That is reasonably obvious, and not useful basis for a discussion on Brexit.
If you want to gain a better understanding of why people in general voted for Brexit, data would be valuable. Everything else is anicdotal, and not very useful.
How would you support the claim that people in the “HN demographic” voted in significant numbers for leave?
For example this poll from the referendum shows that the no. 1 reason people voted to leave was 'decisions about the UK should be taken in the UK'
http://lordashcroftpolls.com/2016/06/how-the-united-kingdom-...
Edit: typo
It also suggests that leave voter see multiculturalism, feminism, the Green movement, globalisation and immigration as negatives (80%). Overall I see this as supporting the notion that the leave vote was anti-immigration, perhaps as part of a wider distrust of outside influences.
As just a single example the housebuilding industry has been consistently able to build fewer houses than there are people arriving by a large number, and the statistics over how many people are arriving are themselves deeply suspect - they don't correlate with any other population related statistics, and are based on airport surveys that ask a subset of people whether they plan to stay for a long period.
If politicians allow immigration at levels significantly above the speed at which infrastructure can be built out to support the new people then infrastructure reliability and availability will decline. It is reasonable to be concerned about that if you rely on that infrastructure.
The idea of Brexit voters as incorrigible racists isn't supportable, no datasets of any integrity show that and the brief spike of "omg britain is so racist" died down very quickly after the referendum, simply because the UK is and remains by far the most racially diverse nation in Europe.