At one point Vee said Sargon's comments had caused 'deliberations' inside UKIP. Presumably someone emailed them to UKIP and they deliberated about whether to kick him out or not.
If you read Farage's book he was pretty clear about how he let Robert Kilroy-Silk in, despite Kilroy-Silk being a dubious character - he was a daytime TV host with severe megalomania and a tendency to make terrible political gaffes. On the other hand he brought publicity to the party on the proto Trumpian principle that 'there's no such thing as bad publicity'. Being a megalomaniac he attempted a coup, was blocked by the rules and resigned in a huff.
Anyway Farage said of him that 'I got more out of Kilroy-Silk than he got out me'. This is referencing the Churchill quote about he 'got more out of alcohol than it got out of him'.
Anyhow the point is that Farage knew that Kilroy-Silk was a bit of loose cannon, he also knew that he'd cause the press to write about UKIP and he decided to let him for a bit and then cut him loose, even though in this case Kilroy-Silk cut himself loose. If I were Sargon and people in UKIP had said they were deliberating, I'd suspect I'd narrowly avoided being kicked out for his 'white niggers' comment.
Here's Farage on Kilroy-Silk after the later left UKIP
https://www.birminghammail.co.uk/incoming/nigel-farage-robert-kilroy-silk-crackers-4743774
I.e. UKIP might well let in Sargon and co for publicity and to try to get people to join. Then they'll look at the numbers of new members and the net publicity and decided whether to keep 'em on or boot 'em out. I.e. all it takes is for some MSM publication to do a hit piece on Sargon and then see that UKIP only got a few hundred new members and then issue a press release disavowing them.
Then again maybe UKIP will decide that, like Trump, the journalists calling Sargon 'Alt Right' are the same ones calling UKIP 'Alt Right' and the people likely to vote for UKIP don't really care what they think.
I suspect Theresa May's BREXIT policy has more effect on UKIP's support than Sargon. If she sticks to her current Chequers policy (out of the EU but still abiding by EU rules), the Conservatives will have a meltdown and UKIP will benefit. If she does a U turn, abandons Chequers and aims for the UK to be out of the EU but with a free trade agreement like Canada has, UKIP will stay at their current level of support. And it's worth pointing out that Boris Johnson, a totally untrustworthy politician, just became the front runner to succeed May for two reasons. One was saying that burqas 'look like letterboxes' in an article where he opposed a burqa ban on libertarian grounds, and one is that Trump publicly tipped him as someone who'd made a good PM. Ie Boris is doing Trumpian politics of trolling the left and then gaining support from everyone else who hates them. Arguably UKIP getting in some Youtube trolls to troll the mostly far left media isn't a bad idea and they can always toss them under the bus if it seems expedient.
We live in dysfunctional, though very amusing times...
BTW Sargon will make a complete fool of himself in the upcoming BBC documentary.