In 1963 at Milton Academy, the same illustrious New England Prep School that Teddy Kennedy attended, I went storming into the headmaster's office to complain about anti-semitic harassment three upperclassmen were inflicting on a Jewish freshman.
The headmaster refused to act saying, "Usually there are lots of reasons for labels and labeling," or words very similar to those.
I wasn’t there.
Conceivably the Headmaster was right.
Personally, sounds like a dogpile, to me. I’d likely have intervened.
However, even if it were a dogpile, in such a context, intervention by the authority would be tricky.
. . . without making life worse for the Jewish bloke . . . How to strengthen his standing and slice to shreds any authentic mean-spirited evil . . . tricky stuff . . . even for Headmasters.
Methinks some of your rich perceptiveness is not considering all the possibilities from God’s perspective.