Yes DEI is better advanced naming unchecked white power “white supremacy” rather than “whiteness“ because the latter name scares whites by making them believe their decline is being celebrated. White people are NOT the problem. UNCHECKED WHITE POWER is the problem.
1)To convince whites that social justice is ALSO in their interests:
Data Antiracist Mathematics: White Supremacy Often Even Harms Its...
2)Furthering the point, checking white power may distribute white privilege and mass clone whites to extract reparations out of those clones: Book Respectfully and Unfortunately, The Improbability of, and Da...