You are entirely correct I think. If he had any motivation he would be trying to push himself out there as some sort of diversity consultant; it would be ideal for him, he's got the perpetual outrage down pat. All he would have to do is come up with some semi-(un)reasonable proposals for companies that hire him (and subsequently ignore 99% of his ramblings). Everyone wins, he gets a consultancy fee (and feels validated), a company gets to say that they have consulted with such experts (increasing their social capital), and everyone smiles.
I will start the template for free (and yes this is a bad policy):
Company name,
Times observed:
Location:
Observations of gendered language used:
Incidences of unconscious bias:
Recommendations to make people (if they identify as such), feel more validated:
Billing address, (please remit promptly)...
Yes, my tongue is firmly in my cheek, but still?