THIS. So loudly this. Any kind of climate where asking the wrong question or expecting evidence for a claim automatically makes you a villain. And not a whimsical, comical fictional villain but, where people actively seek you out and try to get you fired for asking questions isn't something that people want to engage. There is too much risk and too little reward.
Speak out and you could lose your job, do the right thing and people will say "This is how it should have been the whole time". Even taking credit for a win in this area incorrectly will lead to villainy.
What I would love to see a case study company in tech that "spent 25% of their time on diversity and inclusion efforts" and did not just better than the baseline in tech but, made up for the opportunity cost.