"still most leavers are either Conservative voters or traditional non-voters."
Wishful thinking. Completely untrue, by all the evidence. Next you'll be telling us poor people were too stupid to know what they were voting for.
Reality is actually that we didn't have a real referendum, we had a ridiculous social media style popularity contest between Nasty Nige and the EU, which unsurprisingly came out even because no-one _likes_ either. That didn't say anything about who we want to run the country.