The issue isn't necessarily that he doesn't deserve to have a job, but he certainly doesn't deserve to take advantage of what is demonstrably a position of power and influence over others to spread hate in a public forum. Freedom of speech is treated as this unassailable privilege in any arena but if the speech in question is, for example, a violent fatwa calling for the death of an author, as in the case of Salman Rushdie, I think it's entirely justified for a public forum to suppress that. Let those who want to spread violent or damaging ideas find a private platform for it and leave it to them to find an audience.