UKIP had members who were entitled to vote. That is normal in a democratic party. Unfortunately the members did not always vote the way their leader, liar Farage, wanted them to vote, so he jumped ship and has now set up the "brexit party" which is not a democratic party but a private company where "supporters" sign up, pay £25 and have no say in anything.
These fools give their money to liar Farage but can't decide on the policies, the leadership, or the candidates of this so-called party.
I have never, ever, suggested that all those who voted leave in 2016 are stupid but how stupid would you have to be to sign up to that?