Yes, i do believe that he should have highlighted that once he held racist views of an entire group of people himself. That's why I am critical of him. Before today we didn't know he held such views on Jewish people and in a conversation about institutional racism in sport, he forgot to state that he also held such views. It wouldn't have hurt his testimonies or the accusations of those who had abused him personally.
But to only make a statement after others found evidence of him holding similar racist opinions of others, in a discussion about racist behaviour, makes people ask the legitimate question, "why only now"?
But you go ahead and deny my experiences and why I believe what I do. I've experienced this many times, first hand. I empathised with him, only to discover he was capable of doing it to others similar to myself at one point. It hurts, you know.