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without people voting Leave for irrational reasons the referendum result wouldn't even have been close

So you're saying that no-one voted Remain for irrational reasons? Sorry, but I don't believe that. I've heard people who voted remain because they thought they'd not be able to travel to the EU again, people living in the EU that expect to be deported, people with pensions from EU companies that were scared they would stop.and more, none very rational. It cuts both ways.