I'm broadly of the opinion that workplace is not where DEI is best practiced. I very rarely go to meetings called for me anyway and i wouldn't attend a mandatory training of this nature at all. DEI can be replaced by systems that favour equity and merit fairly easily - but you cannot on the one hand argue for the scrapping of legacy placements at university but also affirmative action as a plus. Well... you can but you shouldn't, because it's double speak.
Where I think DEI needs to be achieved, and where we likely disagree, is that DEI happens best under a more socialist government inclined towards schemes that favour inclusion and mixing. You have to take tax payers money and set up sporting leagues, dance schools, community choirs, other events The private sector isn't interested in that when it can't make money - but I think wealth should be redistributed that way.... My argument for conservatives is simple, if you invest in community events, you lower crime and keep your family safer. If you don't, you marginalise people, there's more crime, worse parenting, no role models and the chances of your children or grandchildren getting shot in the future goes exponentially upwards with every generation.
That's why I continue to live in a democratically socialist state (with relatively fewer crimes per capita than the US) and continue to vote left. :o)