Why do black people give their children such unique names?

First of all, I don’t want this to come off as racist or offensive at all and I’m sorry if it feels that way to you. I’m just genuinely curious as to how it started and why it caught on. I saw a girl on Twitter with the name “Ty’rhianna” and another with the name “Be’Jionne”. I’ve seen movies and tv shows that reference this by saying black people (mostly black Americans, I’m assuming) give their children such unique names before, but I’ve never really given it much thought as to why until now.

Edit: don’t understand why my post and my comments are being downvoted instead of someone trying to explain this to me. Makes no sense