I worked at Google, and if racism is present in the hiring process, it's to the benefit of minorities. Google would (at least during my time there) jump through a lot of hoops give POCs and women on-site interviews, and the review process was scrubbed of racial information. Many employees took it upon themselves to avoid using gendered language in their reviews as well, to avoid that possibly playing a role.
That being said, over the course of ~50 on-site interviews I conducted there, only 2 were Black, and they were both from Africa, not the United States. The reality is, African Americans are woefully under represented in computer science well upstream of companies that would love to hire them. Even if you assume all corporations are evil, hiring more POCs would be in their best interest at this point just to avoid lawsuits and to have better optics.
That being said, over the course of ~50 on-site interviews I conducted there, only 2 were Black, and they were both from Africa, not the United States. The reality is, African Americans are woefully under represented in computer science well upstream of companies that would love to hire them. Even if you assume all corporations are evil, hiring more POCs would be in their best interest at this point just to avoid lawsuits and to have better optics.