Ooh a massive and inaccurate generalisation.
On GN at least the vitriol has been dished out every bit as much- as it happens I think more- by some of the Remainers. Their spurious assumption of moral or intellectual superiority has been singularly unattractive. Members' genuinely held opinions or their questions and fears have frequently been rubbished or summarily dismissed.
There have been some outrageous claims in RL and scaremongering by both sides, but rudeness, intolerance and haranguing will never convince me the rightness of any argument. In RL however I have listened for example with respect to what Gisela Stewart says also Hilary Benn among others.
Link after link will not convince me either side is right, I like the analogy quoted that the EU can be seen a bit like a marriage, some of it living up to expectations , some of it disappointing. Whether the final decision is to be to work at the marriage or cut and run is not black and white and unlikely to ever be painless.