You do understand, don't you, that movements like Brexit and all of these other ultra- right wing movements around the world have been explicitly fueled and engineered by Russian Intelligence? It's not even a debate anymore--the evidence is overwhelming that much of the anger and protests and online grief are, essentially, Russian plants.
That isn't to say that people aren't and haven't been angry for such reasons, but the actual numbers and the actual movement to turn things the way they have gone has been proven over and over again to be an organized Russian program. Brexit and the US elections of 2016, specifically. Hell, polling in the UK pretty much shows that Brexit, among people that actually voted for it, is extremely unpopular. "I didn't know what it really meant!" is the most common complaint. This is because a lot of people were targeted victims of the exact type of disinformation campaign that the Putin USSR has been running for decades.
That is literally what happened. No one rationally decides to lop off their foot to cure their athlete's foot, but that is exactly what Brexit means for everyone that was legit angry at the time, and now they understand it.
So no, this isn't a movement of angry people driving right-wing fascist terrorism, it's a targeted campaign by a dedicated foreign antagonist to capture long-standing, never-will-be-resolved grievances and mask them into some major paradigm shift of world order.