The non-troll thing that seems to have initiated this was some local author tossing out a whole bunch of crazy. The movie was pulled and then the trolls descended.
Twitter really needs to do something about the toxicity on there or they'll be left with even fewer celebrities on there than they have right now. The latest target of the insanity is Gina Carano, the MMA fighter turned actress who played Cara Dune on the Mandalorian. She posted an old photo of all these people doing the Hitler salute with a circle around the one guy not doing it. She then posted an article in that thread about the story behind that man's act of defiance. Of course, the nutjobs only saw the picture and started attacking her.
The timeline from there is a bit fuzzy but the best I can tell is that people started accusing her of being racist because she posted a photo of people saluting Hitler. She started blocking people doing this. This included people demanding she post "BLM" to "prove" she's not racist (not sure how that works). She was this accused of blocking black lives matter supporters. She then lashes out against those accusing her of racism and says she's blocking people trying to bully her. You then have people responding that the accusations of racism and insults aren't people bullying her, they're people trying to "educate" her.
Naturally this entire exchange was absolutely rife with trolls. Many were likely bot accounts. However, there were those in that crowd of trolls that were the SJWs. It was all absolute and complete nonsense. Twitter is a bad neighborhood. If it weren't the best location for a custom sports news feed I'd probably delete my account.