To be fair, PSL isn't a monolith, and the US is filled with misogynists and horrible men in general. Awful that people in power in the org covered it up, even for a single branch it should be all that we're against. Here's a mega link with criticisms and accounts of SA

Will note I disagree with a good portion of the public criticisms section as some are Maoist/Trotskyist takes but the first hand accounts here are worth listening to. I think a big problem here is the lack of transperancy and purposefully hindered communication (cadre in branches are told not to talk to each other except through leadership) and overall too much centralization without the democratic part. Considering the anti-indigenity found in their socialist reconstruction program as well as by other indigenous groups interactions with them (I would suggest reading the Red Nation link in the drive), you could also tie this in with their settler politics as a whole.

I will also note the organization has a history of calling people who disagree with their line or mention the cases of SA as "adventurists" "wreckers" or the like. This is where the danger steps in, PSL is a deeply imperfect org and even an org as revolutionary and worthy of praise and support as the black panthers should and would take SA seriously.