Yes, plenty. See leave EU, or the Brexit party.
No, there are no facts in support of Brexit. It is purely based on emotion which is why it's so difficult to argue against. The facts are:
Brexit, especially no-deal,is very bad for the UK economy. This is agreed by pretty much everyone who knows anything about economics and the government's own analysis. The only pro-Brexit economists (Patrick Minford and his tiny tribe of "Economists for Brexit") have been roundly disproved by every other economist. They've gone very quiet recently.
Brexit is destabilising for the peace process in Northern Ireland. A hard border is unworkable as part of the peace process. A sea border could work but has been deemed unacceptable by the government.
There are plenty of non-facts bandied about but these are easily checkable if people bothered to do so. Eg, the UK will be forced to join an EU army. No, individual member states have a veto on any kind of joint military action. Or Turkey is joining the EU. Nope,it has been trying to meet the many accession criteria since the mid-1980s and has achieved a total of one (which it's probably lost under the Erdogan presidency anyway).
Brexit is like some sort of weird cult. In 2016 there was no mention of leaving without a deal, but now all Brexit supporters insist this is what they voted for. Unfortunately, like with a cult, views are entrenched. People hate to admit they've made a mistake. The only way out is to keep kicking the can until enough of the younger generation have changed the agenda, or compromise by having an EEA-style agreement which would have been bearable for pretty much everyone after the referendum until Theresa May set out her stupid intransigent red lines.