I keep seeing people saying Rachel Dolezal is no different than Caitlyn Jenner, and I can't ignore the feelings that stirred in me.
The two can't even be compared.
Are some African/Island cultures' main practicers of African decent? Maybe. But being black isn't a culture just like being white isn't a culture.
Being "black" means your skin tone is dark. It's a term used in social based systems of racial classification, to describe persons who are perceived to be dark-skinned compared to other given populations. Rachel's skin isn't darkly toned.
You cannot be born caucasian and identify as 'black' or 'chinese' or 'hispanic' for the same reason a cat can't identify as a dog. Skin tone is not a culture.
Caitlyn Jenner's story is much different. You can be born into the body of one gender, while psychologically and emotionally you are the opposing gender. It's not Caitlyn's fault she was born into a male's body when she should actually have been born a female.