There are many examples like this if you care to look for them. I would recommend the books Weapons of Math Destruction and Invisible Women for some very well done research on the way that you can codify human biases in processes that should neutral.
I would also personally recommend that you give an earnest try to understanding why so many people argue for diversity. A genuine attempt. Even if you don't fully change your mind on it I think you will find it easier to approach the world with a little more compassion for people who don't look like you.
[0]: https://ihpi.umich.edu/news/commentary-more-health-inequalit...