Taric is a Pimp but clearly white.... As to why there are no melatonin loaded champions of the league ask yourself why Stan Lee never had a black friend of Spider-man or why there are no black avengers excepting of course the movies and let's face it leader of Shield isn't a superhero.
And let us all remember when actors of the silver screen had to put on shoe polish Black faces to satisfy the masses.... is that really what you want? Is that what you view as equality? let's just add a few inches to the codpiece on Taric and give him a Jerry-curl and call it a day.