Pretty much in my experience. I’m sure there were some people who worked with companies to help with DEI initiatives who were doing so in good faith, but ultimately the system doesn’t work in a way that would allow change.
HR departments are naturally responsible for any diversity training and practices, but HR is beholden to the interests of executives and investors who don’t care at all.
That’s why the only reason any inclusive practice is ever adopted is because of regulation or because companies think they can get an edge in marketing.
It just makes chud whining even dumber because if they understood how the businesses they pretend to worship work then they’d know that these practices are just capitalism doing capitalism things, which they claim to support.
The fundamental problem with your question is the perception that there are these prescribed stages of development and each stage is an advancement on the previous.
Instead, the indigenous peoples in the world were just as “advanced” as the colonizers who slaughtered and enslaved them. They were not on different stages of a tech tree like in a game, they just developed different societies.
So of course slavery was not necessary because there is no such thing as necessary advancement. Even if you argue that advancements in medicine requires more modern modes of production, places like Cuba or the Soviet Union skipped or sped through or skirted around or limitidly used Capitalism and still developed incredible health programs. So then capitalism isn’t even necessary for technological advancement in that way, let alone slavery.