Robin DiAngelo is a best selling author though. With a PhD in the content at hand to boot. Why should she not be championed through training courses? Clearly popular enough to be a best seller - got a lot of "support" for the ideas there.
The thread title should be "Robin DiAngelo training course being used in workplace inclusiveness training across without challenge or balance".
We all know why it won't be challenged, because if you challenge it (not deny it, just question it) you are a target for being labelled problematic, it's purposefully designed this way and why it's got so far. Theories must be allowed to be challenged to allow them to be proven, or improved like all other science.
Robin DiAngelo's material is based on the principles of a Kafkatrap.
As you say, it won't be challenged - because challenging or denying it means you are guilty by default.
To take DiAngelo's theories:
You are white? Then you are invested in, and collude with, racism.
If you can't admit that, or you actively deny, or sit there in awkward silence over the the above allegation? It's because you are blinded by white fragility - and that is because you are a white racist.
How can you counter that argument?
You are in the wrong - and if you dispute that you are in the wrong, then that in itself is proof that you are in the wrong.
It's a horrible form of constructing an argument or theory, but it's one that is increasingly employed.