The widely accepted and quoted ONS statistics as quoted by smallfox also.
The Press who endorsed the leave campaign had a much wider readership, The Telegraph, Daily Mail, Express and Murdoch press have over 5m, The rest nearer 1.5m
Perhaps you are unaware that many of your stereotype high earners were leave also, the ones who aren't bothered about having a sensible strategy for the financial services industry based on being a regulated financial centre for the EU. They want an unregulated city where they are free to make large sums of money on the back of big risks / be the money laundering/ bank to the crooks of the world. What could possibly go wrong, apart from what did. They are not exactly the ones struggling to pay nannies and cleaners anyway are they?
Why an earth would I argue against what is basically your emotional response to a lot of emotive rhetoric you have picked up from the media and politicians! No this island is neither overcrowded or creaking though it's wealth and resources could be better distributed. I actually spent years living somewhere far more densely populated and it was a prosperous economy and still with plenty of lovely open space in which to hike. I wouldn't advocate the same density of housing here but we are nowhere near that. Nor am I accepting your continued peddling of an imaginary figure / flood of immigrants, as others say it is just a straw man . What I want is for Britain to continue to welcome those people who will make a contribution to our economy, both those with skills and talent and those willing to do the jobs that we cannot find others to do, not the status quo because In my direct experience the non EU immigration process is overly bureaucratic, expensive and inhumane and I think it needs to be better focused on not deterring those people who will make a positive contribution to our society. If I thought that immigration was really having a negative effect then I would advocate different controls but it isn't, it has benefitted our economy.
What I certainly didn't want was to find myself on an island that has pissed off the rest of the world and shot itself in the foot economically, in which racist xenophobic rhetoric and behaviour has been given a ticket to assert itself. I have had to comfort friends who have been made to cry by it. When I walk the streets I keep having to tear down nasty small minded hate filled little postcards, badly drawn and spelt, that have appeared there for the first time. I have children who now plan to live overseas because they feel betrayed and that their prospects will be better elsewhere.
I am quite sure that you will get your wish of less immigration whatever the governments opts for in terms of the economic damage they will have to accept along with any degree of immigration control they achieve. There is plenty of evidence including those I know directly and indeed my family, that bright people from elsewhere in the world are either leaving or not coming here in the first place, and that our own bright young people plan careers in other parts of the world where they will be welcomed. The worse the economy is hit the fewer people will come here, and indeed the less we will be able to afford in terms of the doctors, nurses and other skilled public sector workers who help keep society going, and put the sticking plasters on our old people.