Other than high-profile lawsuits against tech companies accusing them of discrimination against demographic groups?

https://www.mercurynews.com/2019/06/07/google-discrimination...

"Now the plaintiffs can request access to internal Google documents to try to support their allegations, which also include some people being “denied employment because of their actual and perceived conservative political activities and affiliations, and their status as actual or perceived Asian or Caucasian male job applicants,”"

There are myriad examples of this sort of allegation from the last decade, it's not hard to find them. They've been discussed here on HN.