Internet commenters are much too quick to factor into camps and tribes and then use extra-intense labels ("racism" in this case) to denounce each other. This appeals only to the side that already agrees with you, and leads to a downward spiral in which each side keeps escalating and the rest of the audience just feels alienated and starts wishing for some other place. That path leads to HN no longer being a forum for useful information and substantive comments, so we all need to take a different path.
Your previous comment was similar: https://news.ycombinator.com/item?id=22538238. That's another example of what not to do on HN. Your more recent comment, though, is great: https://news.ycombinator.com/item?id=22605788. That's simple and factual.