Well I know I didn't pay much attention to them. But I'm not sure that undermines my point in any way. There may well have been a huge disconnect between the discussion on the street and on the various TV debates, interviews etc. But, in the first place, when you say "most" rather than "all", that presumably allows that at least some people might have been influenced by such debates, literature etc. How many? The best source I'm aware of, not least because it was published by someone who supported Brexit at the time -- so can hardly be dismissed as Remain bias -- is the Ashcroft poll immediately after the Referendum, which suggested that roughly a quarter of voters only decided which way they'd vote in the last week or so before the vote itself. Maybe they would have always made the same decision -- but at the same time, many Remain supporters cited as their chief reason for leaving concerns that the risks were too great, which certainly sounds like they were influenced by the campaign literature and debates.
The general point I'm making is that the question of "Remain or Leave" is lacking in detail and therefore open to interpretation about how to implement the result. "No Deal" is an extreme version of Brexit, and, although it clearly suits me to argue this, I don't think it at all unreasonable to ask its supporters to demonstrate that such an extraordinary and, yes, risky proposal have the unambiguous support
needed to go ahead with it, rather than the burden be on the opponents of No Deal to prove that it does not.
https://lordashcroftpolls.com/2016/06/how-the-united-kingdom-voted-and-why/