The whole situation is a bit surreal.
Essentially, I think Williams has found out that time catches up to us all and she's handled it particularly poorly in this case. It was herself that actually brought the subject of gender into the debate, shouting at the umpire 'I have a daughter, I have never cheated in my life' as if that fact proof of purity. I know as many terrible people, that also happen to be mothers, as I do those that are nice. If you actually read the full transcript she seems to pluck the sexism angle out of thin air when she refers herself to the tournament referees.
The 3 violations for receiving coaching, which her coach has literally admitted was exactly what he was going on (perhaps he is in cahoots with the misogynist Illuminati here too), smashing her racket and then hurling dogs' abuse at the umpire when it wasn't going her way are all clean cut and punishable. By all accounts she told the umpire 'you will never, ever be on another court of mine' which is spectacularly arrogant, and reflects an attitude of being above the game.
Many arguments in favour are citing players such as Nastase and McInroe as indicators of the double standard, but if we're all going to be judged by the standards of male athletes from the 70s and 80s, well, we're all damned.