Rationally, there are only 4 camps of Leave voters (they are not mutually exclusive) anyone who claims to not be part of any is delusional and in the 4th one by default:
1) The 1% tax dodgers. Terrified of incoming transparency laws, they've financially pushed successive Tory efforts to leave via any means necessary in order to conceal income from the public purse. They raise two middle fingers to the general UK population, first by denying them billions in tax revenue and then by wrecking the country in their efforts to retain it (this group may also include delusional aspirants). If you voted for Brexit then you've supported these parasites.
2) Deregulation junkies. Business owners/board members who hate that they are mandated to provide holiday pay, sick pay, maternity pay, health and safety checks, and all sorts of other benefits to workers that eat into their potential profits. Another group with contempt and disdain for the 'little people' who actually graft to make them money, and are happy to make their lives worse twice over. Raab, Patel etc are their flag bearers in government. If you voted for Brexit then you've supported these cockroaches.
3) Anti-immigration zealots. Can come from any social or economic strata, bound together by their desire to not live near people that aren't like them. Whilst there are in fact, non-xenophobic reasons to be against immigration, if you don't also fall into either of the first two categories and you've decided that Brexit has to be carried out over any and all other concerns (including but not limited to: governments abiding by treaties and the law, the economic wellbeing and living standards of the general populace and the overall democratic health of the nation) then you really need a bit of introspection as to what drives your dislike of 'the other'. If you voted for Brexit, regardless of what you can bear to admit to yourself, you voted on the same side as the racists and xenophobes.
4) The naively stupid. If you can't identify with any of the three above, then this is where you reside. It's for all those people who insist things like 'sovereignty' are tangible benefits we're all about to prosper from, and have trouble forming a coherent argument for Brexit that isn't just lifted from a tabloid headline. They simply nodded their head 5 years ago when a charismatic speaker started tubthumping and that narrative is now increasingly impossible to shift. It's impossible for them to explain exactly what they're getting out of the whole thing, their living situations will be demonstrably worse (via losing the rights automatically granted to EU citizens) but there they still are, Union Jack avatars loudly claiming some sort of patriotism-based moral superiority, when all they're doing is cheering the diminishment of the country, the breakup of the Union and the imminent impoverishment of us all.