I can remember very well calls for violence in twitter against Nick Sandemann. And I remember very well those calls for violence not being removed at all.
Also, during the riots of 2020, it was extremely common to find calls to violence in twitter that weren't deleted.
What's your point, that they apply TOS inconsistently? I don't think anyone will disagree with that assessment. They let Trump violate the TOS for 4 years.
They are perfectly within their rights as a private business to make those exceptions. Is it fair? No. Would we much rather they apply things consistently? Yes.
The question is, do we want to enforce who and what they can and cannot allow on their platform via law, or do we want private businesses to control who they are allowed to do business with?
Also, during the riots of 2020, it was extremely common to find calls to violence in twitter that weren't deleted.