Seems as though he is consistently gang down voted.
Not "gang down voted", you paranoid —they are individual decisions.
You seem to think that this is solely political in nature. It's not. Nor is it in many other posts by others, both left and right, that are voted down, one member-one vote, in countless threads, political and non-political. It's because the comments are purposefully written in an insulting, obnoxious, and challenging manner.
There are quite a few characters who get down-voted with impressive regularity — one of them actually repeats the same responses, word-for-word. No, that's not the kind of post that generates — or merits — popular acclaim.
You (you in general)
can either choose to have a conversation or you can provoke an argument. It's usually pretty obvious. I'd be interested to see if you could provide an example of a relatively innocent response getting more than 1 or 2 down-votes simply for its political perspective.