I would be very interested in hearing what sort of argument he came up with to claim that Article IV, Section 2 (The fugitive slave clause of the US Constitution) was "anti-slavery."
The American Constitution and the Slave - Is the Constitution pro-slavery or anti-slavery?
Both.
This is what happens when a document is written by a committee.
You know I record these things into audio at Librivox so they get a wider audience. So you should have already heard it by now, I've shown it to you more than once. That and I linked to it here as well to the other user - it was a raw-looking URL even. Meaning, you had to avoid clicking and avoid listening to it in order to hear it. How did you miss it?
"The American Constitution and the Slave - Is the Constitution pro-slavery or anti-slavery?"
"Both."
It's not. The 1619 Project is wrong. You trust progressives too much. Not really sure why you trust progressives, but there it is.