Steve,
Well we can all come up with "possible reasons," can't we. But, Teribus, "possible reasons" are not proven causes.

It was the reputable CST report that concluded that Labour's anti-Semitism probably contributed to the rise in such attacks.
Such a thing is not capable of proof, any more than it can be proved that Brexit contributed to racist attacks, but Jim made a big issue of that!

But you and Keith are obsessed with just one "possible reason,"

No. We acknowledged the other possible reasons but this thread is about Labour.

and you seem to wish to eliminate from consideration all the other "possible reasons"

No. We just highlighted the one that was relevant to this thread.