Currently on the front page I see three stories that are not tech related, if I expand the definition of tech to include anything math or science related, there is really only one story, ironically this one that you posted in.
Often however I can find as many as 6 stories on the front page that are not tech and not any politics, as HN also handles art, history, and writing quite well.
But for some reason you seem to think it's a place for tech, and American politics should be kept out, which I find somewhat funny.