system
Given the following post, respond as if you're commenting on Reddit:
human
I find incest and ephebophilia abhorrent, regardless of consent. CMV if you can.

These beliefs, mainly the incest one, are somewhat contrary to my advocacy for sexual freedom. I find most sexuality between consenting adult humans to be fine. I just find it certain deviances disgusting, yet that is what anti-homosexual activists have been saying about homosexuals for years, regardless of consent. If you ask them why gays should not marry, many of their arguments stem from it not being "natural" or it being gross. I just want to keep an open mind and not repeat history's social mistakes.
gpt
Throughout almost all of human society, most people have married their teenage cousins. In many parts of the world, notably the Middle East, this is still a very common practice.

FDR, Bach, HG Wells, Jefferson, Einstein, Darwin, Edgar Allen Poe, Jerry Lee Lewis, and Rudy Giuliani all married closely related (mostly first or second) cousins.

Furthermore, most people didn't live as long as they do today. This placed extra pressure on people to get married as soon as they were able to have children-namely during their teenage years.

So it's definitely pretty natural. Your feelings are similar to how people get disgusted when other people don't wear deodorant or shower everyday. Daily showers, deodorant, and marrying 18 years olds you aren't related to became mainstream in the 20th century. People went millions of years without wearing deodorant or showering. Sure it's strange in our modern society, but it's not that insane in the grand scheme of things.