Yo I cannot give this deranged grifter 40 minutes of my time. From my skimming he's way off though. Steam is a great consumer-driven platform that actually has a somewhat open market, which gives the impression that 'anything goes,' but anything absolutely does not, in fact, go.
Of the sexual content allowed on Steam, skirting too close to loli/shota/pedo shit will get your game removed. Steam has a history of rejecting VN's and adjacent content for having risqué scenes or dialogue in it. This includes simply having a school anywhere near your sexual content - even if ages are explicitly marked as 18+.
You will get your community forum deleted if you allow hate speech to fester there. All community discussions are bound to a universal set of rules that do not allow hate, harassment, etc.
As developers, Valve are champions of innovating for accessibility. Their modern games contain diverse casts of characters, PoC get huge representation and the next chapter of Half-Life was originally going to revolve around a cast of disabled characters. Their latest game release - Half-Life: Alyx - can literally be played with half a hand because of their dedication to accessibility functions. Remember, Half-Life: Alyx is VR exclusive.
And, you know, Valve itself is a horizontally managed company with little to no hierarchy. Despite Gabe's obvious libertarian streak it's clear Valve has no interest in that side of the culture war. They just want to shut up and make money and to their credit, that's what they do - it's just not because they're anti-DEI warriors.