How to Follow the Rules
Political issues seem to be fine as long as they are on the side of politics HN moderators want them to be on. Articles about systemic racism in medical equipment and even math are fine, but any article against left leaning narratives are banned. There is nothing in the guidelines that forbids certain topics, in fact the guidelines promote healthy discussion on all topics, but the moderators seem to feel differently.
Moderators try to reduce inflammatory content. You might disagree with this and they sometimes might err on the side of caution more than necessary but given your tone in this post they have been correct so far.