This is an interesting topic. I don't have any connection to either Judaism or Islam so I consider myself somewhat impartial, although I have attended stuff run by the Stop The War/Respect group(s?) on campus before. I didn't know about their links with these extreme groups - and yeah, I believe that's a link. I'm with Vienna on this one, it's a double standard to ban links to the BNP but allow equally tenuous ones to exist that defy LUU policy. Nobody is saying "ban all Muslims", but at the same time, why do BNP representatives have to be silenced when "hate preachers" such as the guy mentioned above are allowed to be linked to the LUU?
With regards to Ellis, the guy is a bit of a fool for sharing his views in such a public manner, but he's entitled to have them. It made me laugh to read the letters in Friday's Leeds Student, most of them read (almost literally) "I believe in freedom of speech, but..". There's always the 'but', and in this case it negates the argument. He's entitled to his views, however much the moral majority (myself included) disagree. I think the man needs to stop mentioning them in lectures purely because he will (if he hasn't already) lose all credibility as a teacher, but he shouldn't be sacked for holding them. Unless people can prove that he's actually trying to force students into adopting his belief, or he is discriminating in his teaching against said minorities (which, incidentally, the university itself has been accused of doing in their exam marking), then his job should stay. People want a figure to focus their hatred on and here he is.