No, we don't ban people for holding the wrong views, or what you feel are the wrong views, on a divisive topic like this one. Rather, it's your job not to post like this. And of course it's also the job of the people you're arguing with not to post like this.
You should be emailing the staff with that request, not complaining in a thread. You should also include your evidence.
They read these threads just fine. I don't recommend emailing since that loses context. Additionally, it makes other people aware of the problem.
We don't come close to seeing everything that gets posted to HN. If you see a post that ought to have been moderated but hasn't been, the likeliest explanation is that we didn't see it. You can help by flagging it or emailing us at hn@ycombinator.com.