I'm off the deep end when it comes to existentialism. I think what plagues me most these days is seeing through human incentive structures and seeing just how little you can do in the face of entropy. One of the reasons I like Nazism is its collectivist nature, I can't understand why individualism is so popular with normies, the individual just doesn't matter, humanity as a whole is like dew on a leaf, the individual means nothing. You gain a form of immortality when you have a group you belong to and fight for, because you'll die, but they'll live on presumably after that. "But the world will end at some point, so that's meaningless." On that level it is, but let's look at the quality of life in a collectivist society, or just a society that has a national identity, you get to engage in these customs and cultural elements, they usually exist to combat some sort of issue (like hypergamy), you have common ground with those around you, it's overall a better way of living.