What I got from the article is the danger in trusting a non-academic work, The 1619 project, to further the notion that all 'white people' because of the sins of their slave owning ancestors, are racists, or potential racists in hiding in the privileged closet, too fragile to emerge.
Shetterly's work displays the dangers in absolutist thinking, if one could call such overt generalizations thinking.
Often missing from the dialogue is the large number of Indigenous slave owners not just in the 13 colonies, who owned Black as well as Indigenous slaves, but on the whole continent...slavery amongst almost all Indigenous peoples in the Americas was systemic enough to be a trade/barter item, particularly on the North West Coast.
Even the so-called 'civilized tribes', like the Cherokee, Muscogee, Seminole, Chickasaw, and Choctaw nations all had black slaves.
Indeed, on the infamous Trail of Tears, Indigenous tribes took hundreds of black slaves with them.
The point is that when 'history' like the 1619 Project is presented as fact, and is therefore used to further identity politics, then it better well be accurate...you know, scholastically sound.
Last most academics have checked, the DNA of most Indigenous peoples, especially pre-contact, did not carry the white racist gene.
In the rush to use the past, often in a decontextualized fashion, to punish anyone with white skin and therefore privilege, is to miss the point: class bound poverty is economic enslavement, the disproportionate blunt of which more Black people bear.
Lastly, CRT and The 1691 Project completely ignore how far 'most' in North America have come in a relatively short time to combat racism.
Indigenous peoples in North America no longer own nor sacrifice their slaves. How dare anyone challenge or stain their current nobility with their past sins?
Is there much more work to do?
Of course.
But one won't get compliance by shaming and blaming or especially by excoriating anyone who challenges the scholastic integrity of such works as The 1691 Project as being a bigot.