There is an old Russian joke about this: Professors of a music school gather and try to figure out who to enroll ethnicity-wise. One of them says they should a

There is an old Russian joke about this: Professors of a music school gather and try to figure out who to enroll ethnicity-wise. One of them says they should accept jews for every opening because they make perfect violinists. Another one tells they should accept russians only because it's a russian state after all. Then someone offers to to accept them evenly: five jews, five russians. But then there is an argument that jews only make up ten percent of citisens and therefore for nine russians they should accept one jew. Finally, some rogue professor blames them all for being racists. What would you do!? They ask. Who to accept? "We should accept those who are the best at playing violin!" The same thing applies here, plus innocence until proven guilty. As long there are no facts that those speakers were selected by foul play, they should not cancel the conference. Anything else is racist. Regarding sponsors who pulled support: who do you think gave them this idea? I have an answer you won't like.