This is what I was saying my problem was more/less from the first. They f*cked with the fabric of the Whoiverse with the gender switching (for political purposes). If you don't stay true to the art, this is what happens. Some asshole thinks he can defy whatever he wants.
As for Whitaker, she was an affirmative action hire of sorts and did not have any proper appreciation for the role. She had no motivation on that basis alone.
Nice to see you brought the Toxic male fandom.
Actually, the fact that she was female had very little to do with the show's problems, because it rarely came up. You could have had a male actor in those same stories, and it wouldn't have made a whit of difference. She wasn't feminine, you didn't have male characters hitting on her, nor did she show any interest in men (as opposed to the male doctors since Eccleston, who showed interest in women.)
Peter Capaldi was a huge fan of the show and appreciated the role. Yet his Doctor wasn't well received by the fans either. Part of this was that he came off as too rough, part of it was that fans had gotten used to younger actors playing the Doctor. (Capaldi was the oldest actor to play the Doctor since William Hartnell, the original Doctor.)
The real problem was that they didn't have very good stories. The first season contained no classic villains, and the "new" ones they introduced just weren't very interesting. The second season, they brought back the Daleks, the Cybermen and the Master, but they didn't do anything interesting with them.
Particular note is the Master. A great character who has been around since the 1970's, with every Doctor encountering a version of him. Previously, they gender swapped the Master into "Missy", played by the incomparable Michelle Gomez, and she was kind of awesome, giving a whole new dimension to what could have been a stale character.
Nope. They brought back the Master as a male again, and frankly, he was boring.