[Eliezer]

"If I could guess, 100% of the people are male."

Thank you for making a testable prediction. Your hypothesis is thereby falsified.

"Polyamory is usually one guy and more women and is usually quite the sexist thing. "

Good heavens, what sort of culture-free hole were you raised in? Do you know anyone polyamorous in real life?

"Seeking life extension is at the current point of science not really rational."

And there you have it. If you're anti-fun, you're probably also anti-life.