They've never really been needed anyway, but have formed a magnet for the ragtags, as did the BNP before them.
I think it's more of a mirror to how they have created a society where some people look up to him, but we're seeing this in lots of countries so it's not a one-off. He's an insignificant man but i don't think he even realises the questions that will be unearthed, and they will arrive sooner or later.
Yaxley's bugbear is currently Islam, tenuously linking every misdeed to it. He would have a case if he wasn't already a failed and convicted fraudulent lowlife and a woman-beater. If Farage can see that, how silly are the people who look up to him as if he's a leader? He will go the same way as Nick Griffin, who nobody speaks about now (although interestingly...he loved the UK so much he tried to emigrate to Hungary and was refused as an undesirable with nothing to offer them. Talk about irony...)
Yaxley doesn't ask the right questions or locate the right targets and his record makes him easy to ignore, sideline, or eventually imprison and forget about.
Wage compression for low-skilled workers who directly compete with new immigrants and thus see them as a legitimate target based on racist viewpoints is growing in the UK. If there had been no GFC and no austerity, there would be no UKIP, Yaxley-Lennon, or Brexit. You would still get failed people complaining and expecting stuff for nothing, but that's a staple part of any society and the British have been experts at this with their forced class system. They always need people to step on, and people vote for this time after time because they know no other way. They're reaping what they've sewn by giving up on themselves.
Some of it is down to British politics as the entry of Pakistani nationals is more to do with British reparations and owings from past commonwealth misdeeds, rather than anything the EU have done. That won't stop after Brexit, if anything it will accelerate if the people who want the EU citizens out, won't step up and do the jobs they were doing for the same, or lower and globally competitive wages.
Then you're looking at fascism where you remove all ideas of fairness and mutual cooperation. Just take for yourself, engineer reasons, then let the poorest fight the battles on behalf of the rich.
The question remains for the entire planet...what to do in a world where there is a shrinking role for uneducated and non-competitive workers who's jobs will be replaced by automation, or no longer be required at all ? Their value as an individual reduces, making them less important and less worthy of reward. They become a liability rather than an asset.
This is the question nobody will face up to, is far more important than Brexit, and it will slide all the way to collapse before total economic restructuring becomes the only option. Yaxley is just an exceedingly tiny thread of this