We'd better get used to this. Just look at statements by European politicians since the vote. Occasionally they make a token attempt to be friendly, and saying how of course everyone wants what's best for everyone, but then they go right back to talking about how awful it'll be for the UK and how it's like suicide, how they'd never be stupid enough to let people vote on the EU, etc.
My experience of anyone who thinks of themselves as "European" or a supporter of the EU is actually, when the surface is scratched, extremely angry and vicious. They want the UK to bleed and bleed hard, because they think if it doesn't their dream of a united European future will end. And they are correct: at this point the only thing holding the EU together is fear. They unfortunately don't see how dystopian this makes them.
Well that's a delightfully insulting, sweeping and utterly untrue generalisation.
Whatever makes you feel validated in your choices though I guess. It's easier to assume your opponents are just full of hate and anger instead of trying to understand that they are people with actual thoughts and concerns that are opposed to yours.
There is a very real pro-Monarchy, post-Empire resentment of anything not British among a large section of the British people. They might not say it out loud, but it's clear in the things they say.
There is xenophobia but I think if you look closely you'll find that in most European countries as well. No doubt that instinct will now be directed at the British.
This is clearly about political systems.
You seem very hostile to the UK generally. Weird given your last comparatively friendly comment.