I know you're trying to prove a point that gets under your skin here, but just take a step back for a second... How is UKIP going to win anything when 80% of their sitting incumbents defected to BREXIT? The name recognition from "oh yeah, that's my rep" generally makes it incredibly hard to unseat an incumbent.
Carl managed to Carl up UKIP so hard that the party is Batten, Carl, Dank, a few exceptional individuals who haven't figured out to abandon ship with a side of Tommy Robinson who's not allowed to officially join, but is completely welcome to drag his ass all over the party rug and leave his stink everywhere.
Or to put it another way, he got a cursed monkey paw version of his wish to take the party over. Everyone of value left once he became a star within the party