I see Serena Williams believes that the umpire was sexist, yet as far as I can see she brought it all on herself with even her own coach stating he was coaching which kicked it all off. It doesn't happen often but Men have been kicked out of tournaments and / or docked points in games before in top play. McEnroe who is the most common person held up as a tantrum person on the court never did three violations but was suspended for two months after one serious tirade at an umpire. I wonder if Serena will now be as well?
Call a referee, umpire, marker useless by all means but low of the low is calling them a cheat. Williams got all she deserved.
She relies so much on intimidation that she thinks she can intimidate the officials as well. And then when thinks don't go her why she cries her eyes out. The sooner she retires the better.