"does not give much diversity" isn't the same as "will not provide some useful perspective."
This is the issue I have when discussing these matters with certain people. When everything is presented in such stark black-and-white terms there's little room for discussion.
Tech is often focused on the minutiae of our machines, but even then information and learning is not evenly distributed. I've worked with various minority engineers and also Indian/Chinese/Persian/etc and they've all had really different views on how to approach things, how to manage conflicts, and different mathematical backgrounds too.