This is all very vague, and given that I've seen video of people carrying Israeli flags and harassing the anti genocide protests, those same people then turning around and claiming antisemitism against themselves can account for some of those reports.
I'm sure it's happened. But this doesn't even draw a link to those protests. We know the right wing is very anti Jewish given how often they march with those swastikas mentioned in the article.
Was the ActiBlizz guy the one involved in all the sexual harassment?