Nobody is disputing that Twitter can do whatever it wants, in fact that's exactly the point that (GG)GP is making - why should Twitter have a responsibility to anyone to do anything about hate speech on its site?

The author of the linked article argues that Twitter has a responsibility to censor hate speech, which GP disputed, because Twitter can do whatever the hell it wants. You're arguing that Twitter does not have a responsibility to not censor hate speech, which nobody disputed, because Twitter can do whatever the hell it wants.

You're arguing with the wind again.

edit: typos, phrasing