I don't remember the source but I've heard anecdotes of women at companies with strong diversity pushes feeling that they get taken even less seriously because

I don't remember the source but I've heard anecdotes of women at companies with strong diversity pushes feeling that they get taken even less seriously because others assume they're "just a diversity hire". A lot more needs to be changed culturally than that single hire/no hire decision. An employee's peers and superiors are constantly making decisions that will impact that employee's career trajectory and each decision may only have a small even unconscious bias but cumulatively become extremely impactful. Between employee A and B, maybe A gets slightly more impactful project assignments, gets taken slightly more seriously, gets told more details about the goals of senior management, is given a bit more of a break when they miss deadlines, is mentored a little better by peers etc. If B is losing these little coin tosses even 10% more of the time, the effects add up. For some minorities the same process has been occurring their whole life and plays a big role in why the diversity is so low already at the career entry stage to begin with.