Based on what I've read online, all men and women in my family are apparently sigmas. In fact, most of my friends also fit the sigma profile. As in "sigma male" and "sigma female". Although it's an arbitrary construct, one that some suggest doesn't even exist, the term communicates more about my reality than alpha or beta does.
When I meet somebody I like (probably a fellow sigma), the feeling is one of relief rather than one of fear. We get each other. It was that way for my parents, siblings, and extended family as far as I'm aware. Being on a similar wavelength, along with feeling basic chemistry, is more important to people like us than social hierarchy or hypergamy. Picking a quality partner who is personally relatable to share life with rather than insulting each others' intelligence or wasting each others' time.
Sigma may not be any more or less real than alpha or beta, but it's a potentially useful descriptor. I wonder how much of this is cultural or a matter of how we are raised vs. innate temperament.
Edit: For what it's worth, I think it's kind of silly to describe people in terms like this but it was on my mind.
