I have no problem with the accuracy of any of that, and appreciate you laying out the details based on your readings and knowledge.
For my part, putting this all together in to ‘Shatner is a bad person’ is going way too far. To me he’s got his positive qualities and negative ones, and the negative ones mainly involve him being an asshole and little more. Well, I can live with that and appreciate his art and career no problem as opposed to people like Bill Cosby and Harvey Weinstein, who were obviously way, way more than just assholes to people.
Hollywood is filled with egoistic jackasses, and Shatner’s behavior is just a blip on the radar to me. Not to mention, he’s great fun to mock in certain ways! To wit, the greatest blog I’ve ever read: shatnerstoupee.blogspot.com