The UKIP withdrew the party whip from him in 2013 for having struck a journalist, threatened another and apparently calling a female audience a bunch of sluts. Bloom resigned soon after.
Oops, there goes his credibility!
Even assuming his speech is laced with coherent facts and cogent arguments; he has forfeited the right to make extraordinary claims that can be contemplated seriously.
And pray why? Listen to the argument he makes, not what else he may have said / done.
I would have trouble voting for this guy, but I have no qualms listening to the arguments he makes.