It's advisable to try to train and find young people in various marginalized groups who can then go forward to become equal researchers and leaders of a research community down the road. The best work I know of that's being done with respect to DEI is work that is trying to train members of communities that have previously been marginalized so that they will be able to compete on equal terms with others. That has been successful in some cases. There's still work to be done with respect to that.
I don't believe that what one wants to do is foster an inferior group of people who not only are regarded by outsiders as being there because of some particular extraneous characteristic but who also regard themselves as having been the beneficiaries of some kind of largesse.
We do want to make this a level playing field, but we also have to realize that the field is currently not level for some groups in our societies, and they need help to get them to a stage where they can compete on equal terms with others.