'Ukip is unprofessional and weak'
I agree. They are pretty useless, but that is because they are being deliberately sabotaged.
' Farage a bit as you described.'
I don't agree with that.
'Carswell believed Ukip to be the Libertarian party it claimed to be, before Farage became despotic.'
He says that, but Cameron called them "fruitcakes and closet racists". Carswell wanted to promote his ideas in his book etc and wanted to change UKIP and challenge Farage all along in my opinion.
'If Ukip is ever to be strong and professional it needs people like Carswell far more than Farage.'
No, because the Establishment fear UKIP and they will sabotage and destroy it. In the end, I expect Carswell and some of the other ex Tories will all join the Tories again after their profile has been improved and promoted by the BBC.
There is only one way that UKIP will win and that is to be courageous just as Trump has been in the States where he has singlehandedly defeated the entire Republican elite by not bowing to the political correctness that Carswell stands for.
I don't know how good Banks is, but if he has the necessary courage and vision, then with Farage as the politically incorrect salesman defying the BBC's political correctness etc, then Farage could do a Trump.