Not sure on what that is based. Sure, there are unattractive people of every ilk. Also, "real true" redheads are prone to freckling. (Not something that bothers me in the least in terms of looks.)
I've met a great many real true redheads who are indeed "great lookers".
I'm married to one.
Ah, a man after my own heart. I love when the warm weather returns and all the freckles come out on my lovely redheaded wife. I have even played connect the dots with them once, wouldn’t tell you what I drew!