I recollect tech co's touting their diversity efforts at least since 2016 US elections. What do they have to show for 6 years of efforts? Any objective improvem

I recollect tech co's touting their diversity efforts at least since 2016 US elections. What do they have to show for 6 years of efforts? Any objective improvement so far? If not, better to end this performative theater and let's do something which will actually move the needle.