When I first started learning the Enneagram system of typology I was unbiased about the 9 types. Why would anybody hate on a type? But then I learned from the Enneagram Monthly that there are typologists who hate 3s. They hate them for being chameleon-like (phony, two-faced, whatever), "super-stars," people who represent the dreaded American Way of Life (according to the values of champagne liberals).
What I learned is that 3s were hated - by those who take a stand against stereotyping - for being living examples of stereotypes, simply because, in America, they were/are stereotypical Americans.
I DO NOT care about any of that. I love type 3s, especially the females, because they belong to the SEXIEST type. And the males are outstanding icons of what it means to be human in their particular culture - not just American, it depends on where 3s happen to live or what they happen to do.
I don't care if a particular type 3 is so, sx, or sp - Threes are SEXY. And that's all that matters to me.