I found Clavi's post of Thu 15-Aug-19 22:55:30 very useful for answering the actual title of the thread, as well as beautifully confirming that my previous observation was correct:
And there are plenty of Leave posters even on MN who are still spaffing on about the dubiousness of people with foreign taint, whether by blood or birth, or education, or (the horror!) working for employers of foreign origin, or (FGS) having a foreign surname.
Clavi has effectively admitted (albeit still with a mysterious degree of coyness) that not only do they judge people on how they voted (see other thread), they judge people on how they would have voted if they had been allowed but they don't even think they should be allowed and on which country people's parents shagged in, and on whether people decide to move from the country their parents shagged in, their surnames, on which employers they have worked for, whether they are tourists of particular nationalities, and other characteristics which mean that they are assumed to be inherently dubious.
In summary, those divisions aren't going to be healed, because some people will always be treated with suspicion for reasons like these. Sorry, OP.
And it seems like "naive" is in fact exactly the quality that Clavi desires in their intended audience to absorb their insinuation-filled word-cloud of: "Remainers people tainted with foreign Remainers", untrustworthy, corrupt, biased, liars, dishonest, frivolous, fifth column, etc.