There may have been analysis on why people voted the way they did, but we know from opinion polls that these can often be wide of the mark. If people are asked point blank 'Why did you vote this way or that way' you seldom get an accurate answer - people sometimes answer what they think the interviewer wants to hear, sometimes they are ashamed of their reasons. You can say what you like about analysis, but if you have 17 million people voting then you will have 17 million slightly different reasons, and some of those may be very trivial indeed.
Of course every voter has slightly different reasons why they voted in the referendum the way they did. What you cannot argue about is all studies give the most popular reasons for the 'leave' vote i.e. sovereignty, control of borders, cash to Brussels etc. All of these main reasons were well debated at the time.
