It is hardly factual that he was only allowed into conferences for being white.

A parroted opinion, presented without evidence and rigorous scientific research, on the other hand, can very well be just a political statement. Especially the kind of opinion that is given in a context completely unrelated and to an audience of people that never asked to hear it. Regardless of whether being white is a statistical indicator of likeliness to have something meaningful to say, we need to first establish that the consequences of such a thing are negative in the first place. “White privilege” does not exclude others from the same “privilege” - it’s entirely possible for any other attribute-based demographic to accumulate a statistic average as well.