Sharon was nasty to Aisha, she threw shade and would roll her eyes but it was never on the same level as Megan's daily temper tantrums. Plus, Aisha never let her rattle her. Sharon was intimidated by Aisha's intelligence just like Whoopie is with Sunny on the view. Sharon also orchestrated the firing of Leah and Holly from the first season.
I do get what you are saying in that there is a certain malevolence with the view and that started when Barbara Walters ceded control of the show to Bill Geddie. The view became a bitch fest after that, it used to be more like the talk during the early seasons; girlfriends having coffee while discussing topics both light and heavy. I remember Meredith used to have a paper and she would read something from it and the ladies would discussed, giving their views. It was more natural that way.. If they discussed politics, it was never right versus left.