Good question …

… Who Am I? - by William F. Vallicella.

How can you take legitimate pride in what is merely an element of your facticity (in Sartre's Being and Nothingness sense of 'facticity.')  You had to be born somewhere, to some pair of parents or other, of some race or other, of some sex, and so on.  You're stuck with that. If you need to feel pride, feel pride in what you have done with your facticity, with what you have made of yourself, with the free accomplishments of yourself as a person, as an individual.