I find it hard to agree with that idea.
Half of Britons still think Brexit is a great idea, even now they have access to all the data.
Fact is, you live on an island on which a slim majority doesn't want to be part of Europe. Brexit is the purest form of democracy you can get.
One form of democracy, at least: mob rule.
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The idea that democracy, as well as human rights, are based on principles of universal application is clearly dead in Western culture.
Under such principles, one might argue that governance finds its most effective and practical expression in the form of communities of shared interest (nation states), making governance practical and properly focused on local application of universals. These principles are by no means violated by any such communities, states or nations then banding together into larger aggregates (EU); there is no logical or ideological contradiction involved.
To support the notion that multi-level structures of governance are a
bad idea ('evil EU empire'), one must also logically reject any such aggregation on home territory, as well as now question the legitimacy of governance itself. In its final form, say "hello" to the disaggregated, nation-less, state-less, ungovernable Avalon of Anarchy that Brexit ultimately argues for. No surprise that its denouement is likely to lead to the breakup of the UK itself.
In short, the arguments of Brexit are self-contradictory, a mish-mash of loose verbiage lacking any tether to principle or solid grounding: A pauper among political philosophies without any foundation beyond naked tribalism. The emotional catharsis it offers its adepts tingles invitingly, but does so by loosening the savage within, affording the same kind of cheap and easy "freedom" one gets, say, when loosening a girdle, or tossing garbage where once forbidden.
Brexit, as formulated by its proponents, is the clear rejection of any principles of recognizable universal application, and therefore consists of a frontal assault on democracy itself. To praise it in terms of its supposed democratic credentials relies on equating the denial of principle with its affirmation, an impossibility. That is the trap that the unwise, strident or Putin-adoring have fallen into, soon to discover the walls of that trap are steep, indeed.