Why purple is either GAY or EVIL

Out of all the animes I have seen, (and that list exceeds 100) I have noticed that characters with purple hair (or anatomy) are either gay, or evil.  View the list of names below to see my theory for yourself!

GAY:

Milphrey (Sorcerer Hunters)

Nuriko (Fushigi Yuugi)

Captain Ginyu (Dragonball Z)

Shinji and his Evangelion (Neon Genesis Evangelion)

EVIL:

Freiza (Dragonball Z)

Ayeka (No Need For Tenchi, okay okay, she may not be evil, but she's a wench!)

Akio (Revolutionary Girl Utena, he's gay too, but more evil than he is gay)

Brad Kirsten (Psychic Force)

Cait Sith (Vampire Princess Miyu)

Sailor Saturn / Mistress 9 (Bishojo Senshi Sera Muun)

Dilandu (The Vision of Escaflowne)

Xellos (Slayers)

Sarah (Sharmanic Princess)

And of course we know that Trunks being the little bitch he is, is both gay and evil.