We as humans generate ideas that often feel spontaneous, but are actually the result of a lifetime of experience mixed with innate problem solving ability and our present state. theres a ton of research on creativity i can send you
I know your life experiences are different than mine, without having a hint as to your race. Race comes into the picture because having a different race often means you have different cultural aspects thats formed you as the person you are today.
Sure a group of programmers are going to come up with different solutions to a problem vs a group of designers.
Diversity of ethnicity just ensures that prior to chosen profession, each individual grew up with a cultural background that does influence the ideas they come up with