I am obviously in a minority here but I have watched his shows online and he could be very funny, particularly when he was telling self-deprecating jokes. He also seemed to have his heart in the right place regarding social issues, even if his brain wasn't always fully engaged. (I thought he was wrong to advise people not to vote, and deluded to believe that the world would be transformed by spiritual enlightenment.) Someone I know well is an ex-heroin addict and he said Brand talked a lot of sense about addiction.
So I was disappointed that he became another conspiracy theorist, although he has evidently built a considerable following who are very vocal in their support for him . They believe that he is being set up because he challenged those behind the (imaginary) plots.
However, his biggest flaw, in my opinion, was not his cultish opinions but his attitude to women. He has written about his very sleazy behaviour in his younger days, and admitted that it was sleazy, but still seemed to regard the women involved as disposable. He was probably sincere in declaring himself changed by his love for his wife and child, but still seemed amused by his own past behaviour. Some of it sounded quite predatory and even more off-putting than his increasingly right-wing conspiracy theories.
So these allegations don't seem totally surprising. By his own account, he appears to have been a man with a strong sense of entitlement involving sex. But should he be tried in the media in this way? I think not. Surely this is a matter for the police and the courts to decide, and all these tv programmes and newspaper articles won't help to get him a fair trial. The women making the allegations are also going to need a lot of support, as it can't be easy to see yourself vilified as a gold-digger and a liar by people who know nothing about you.