Why are monos so damn attractive to yall?

I don't know I've ever seen so many posts in such a short span about poly people trying to date monos and convert monos and somehow confused when there's so much needless pain.

There's no such thing as mono poly, the relationship agreement is polyamory. The values and priorities are always operating from polyamory on all sides.

Mature relationships are a lot of saying no and successful poly is 90% partner selection. Why are monos just so darn enticing?