Maybe "diversity" means something different to her...
The left’s working definition of “diversity” hasn’t changed since they started using the term.
It means “fewer white men” and “less Western culture”.
The most racist people belong to minorities, and project their own racism towards others.
An example : Mrs. Robinson, who wanted Michelle to marry a black man , not a mulatto or mixed-race.
For her, and Reddit (a place overrun with such individuals), inclusiveness only goes as far as their narrative. If it runs counter to it, they consider it harassment - and proceed to harass, defame, silence (especially with the Chelsea van Valkenberg case), and/or destroy the source.
The easiest way to counter them is to present the truth.