Earlier quoted context omitted.
Did you ever consider people don't agree with your opinion? I am anti Trump but not everybody is. Also there are bots on all sides of the political spectrum as evidenced by the article you are commenting on which dealt with an account pumping Bernie.
It's a well-reasoned respectful comment though. It has been the HN way that downvoting is really to punish overtly bad comments and a lack of upvoting boring comments.
More generally, political comments are bound to attract some downvotes from people who either support the other side or don't like politics on HN, although you'd normally expect more upvotes on a comment which is on-topic, only tangentially related to the figure's politics and well-reasoned and civil