I think your downvotes both here and there are more about your own misrepresentations or misinterpretations. You start off with a pretty aggressive tone and never stop to reflect on what others provide to you as feedback. I don't personally believe that points to the user-base here being biased, but rather the OP themselves.
I was not around to witness this question being closed/deleted, but would have supported it nonetheless. It is not a good fit in it's current form for a Q/A site looking to provide objective answers to questions asked in good faith.
My observations about the original question:
1- You misrepresent why Trump was banned from Twitter. He was not banned for that video.
2- As evidence for the previous, I can point you to Twitter's own blog post on the matter.
3- I think, please correct me if I'm wrong, that the meat of your question is really why does there seem to be a double standard between the treatment of Trump by Twitter and that of other political figures who you believe have made comments similar to that of Trump and yet faced no such permanent suspension.
This last point I think is actually a pretty good question! However, you need to be able to ask in such a way which doesn't come off as so aggressive, and to be able to take and incorporate feedback from the community without feeling as though you are being personally attacked. There is a lot of times more than one way to interpret a speaker's (or writer's) message, and disclaiming bias while repeatedly performing the same is just a recipe for people to wind up tuning you out.