There were literally hundreds, if not thousands of 'erudite views' on why brexit was a bad idea prior to and during the referendum. It was just that brexiteers weren't interested in listening to them.
Take immigration, a cornerstone of the leave campaign, as an example. Leave set their position out as a if vote for them would result in the "taking back control" of our borders and an end to FoM/uncontrolled immigration. What they never told you/voters was that the UK have always "had control" of their borders.
I listened to countless interviews and read countless articles that explained as such in much more detail and with much more eloquence than I but essentially our "control" was thus:
For Non-EU immigration (the type most brexiteers were actually concerned with) the UK had complete control over who was allowed entry into the country.
For EU immigration (FoM) the UK still had quite a bit of control. The agreement allowed anyone who was a national of a Member State of the EU to move to another Member State almost without restriction for three months (note people with criminal records could be stopped from entering if anyone bothered to check). Those who did move could not claim ‘social assistance’ (aka benefits) nor could they claim access to student benefits (grants, loans) during this time. After three months, EU nationals could stay in the host state for the next five years ONLY if they were economically active (as a ‘worker’, self-employed person or a temporary service provider) or if they could provide for themselves (as a person of independent means or a student), otherwise they could have been removed.
Failure to "control" out borders had nothing to do with the EU or FoM and, as always, is solely the fault of the sitting government. Yet despite this information not only being freely available AND publicised most who voted leave for immigration reasons chose to ignore it completely, instead preferring to spout off about "project fear" whenever someone tried to point out these sort of issues.