Who really knows how that happened? I doubt it was a conscious decision by Twitter. Maybe an automatic shadowban occurs after a certain number of reports while awaiting staff review, and people figured out how to abuse that feature.
I don’t want to get into the whole conspiracy thing here, so I’ll just point out that you’re saying he’s the 5th or 6th famous vocal Trump supporter banned, but you only listed two other people, one of whom (Yiannopoulos) is kind of well known for hate and was explicitly banned for it, not shadowbanned.
Whenever any censorship is done in the USA is the last few years, it's always under the guise of "stopping hate speech". They just take it upon themselves to define what hate speech is, of course. Many, many people have called for violence against Trump or Trump supporters on Twitter and have never been banned.
Azealia Banks, black female rapped who endorsed Trump was banned. Search #FreeAzealiaBanks
Conservative Writer Kassy Dillon, who also endorsed Trump was temporarily banned. Search #FreeKassy
Cristina Laila, who's 'hate speech' was speaking out about Islam's unfair treatment of women, was suspended by Twitter.
Sabine Raymonvile, a black cop, who's 'hate speech' was speaking out that blue (police) lives matter, also suspended. Search #FeeeSabine
I don't have time to research everyone you posted but Azealia Banks got banned because she directed a profane, racist, and homophobic rant against Zayn Malik of One Direction.
Maybe it's not that Twitter is targeting Trump supporters, maybe it's that popular users who engage in hatefulness and/or harassment are more likely to be Trump supporters.
http://blog.dilbert.com/post/151301555066/the-week-i-became-...