The common sentiment held by Remainers about Leavers is that they are too ignorant and ill-informed to see beyond the caricature of the EU ("bendy bananas", "blue passports",) and fail to understand why it is in essence a force for good.
But perhaps it is Remainers who are too ignorant and ill-informed to see beyond the caricature of Leavers and fail to understand that they may simply hold entirely reasonable and legitimate objections to the philosophical ideology that underpins the EU.