I do disagree with you a little, ballyhoo. I think inequality and hopelessness helps but I think a lot of the people drawn to the Far Right seem to be authoritarians - authoritarians without the authority they believe is their due (by reason of class, race, sex, nationality) really incensed by the progressive direction of travel.
They won't be appeased by more equality/more progressiveness/less inequality. I suspect that will incense the more. They don't want less inequality - they want an inequality where the 'correct' people are under their feet and 'progressives' (the people responsible for this horrible modern world where they are no longer guaranteed a certain type of people under them, not above the) get a good kicking.
And they don't care if the UK has to become a second-world nation to deliver that.
I never understand the whole 'nativist' thing, which rides alongside this modern Far Right. The weird , emotional, fuzzy call to 'authenticity' and 'national home'. These people HATE the UK. They HATE the modern UK. They even hate prosperity, young people's access to education, to opportunities throughout the world. The grimly want to destroy all of that because they are angry and full of hate.
I don't see any 'patriotism' in that.
It's bizarre.
And they're happy to join up with international capitalists, a cartel of multi-millionaires, and nation states that openly state they want to destabilise Western democracies.
That is, surely, the opposite of patriotism.
The modern Far Right is as baffling as it is stupid and angry.