I think you're being a bit complacent here; how much % did the BNP get in 2010? And then UKIP in the following election? IMO we are more likely to see a new far right party than one in the centre. Look at the Tommy Robinson stuff, which of the 2 main parties do you think they're going to vote for? Can you not see that there is an opportunity for a far right party in the UK to capitalise on this? I think that with the likes of Bannon poking their noses in, it would end up as the 3rd party.
Bannon has a reputation for getting things going. And he has access to finance from the richest families in the USA.
I think the working class ( nowadays different from cloth capped workers ). will be screwed if they let these people near power. But judging by what happened in America, emotions and general reality TV excitement is more important than watching what’s happening to people‘s rights.