I mean it's pretty obvious that he is most likely just an absolute idiot who made a terrible joke than a real Islamophobe (Someone above mentioned Lawrence McKenna, his best friend and co-host, having a Muslim wife and Child).
Any of his advertisers are well within their rights to disassociate themselves from the situation too, I wouldn't want my brand related to it either.
Actions have consequences.
I do wonder how much of the backlash is being pushed by Tate (a wholly unpleasant person that I had no idea existed until I read his thread on here) and his online fan base (cult?) who are alleging that TG said that all Muslims should blow themselves up.
"After me converting to Islam, he made a piece on of his podcast saying I'm not true to my conversion and then insulted all Muslims. Saying that Muslims blow themselves up, and that I should blow myself up and we should all blow ourselves up."
As far as I can tell (from the clip posted) he didn't say that "All Muslims should blow themselves up" so I'm a little troubled about that.
He shouldn't be making jokes about it but at the same time he shouldn't be misquoted so that it appears he was advocating for the elimination of Islam through suicide bombing.