I appreciate this very reasoned response and I think we are on the same page. I am saying that I think people are in general quite unable to think or talk clearly about the truthfulness of statements where if they were true it would upend their morality.

The solution to this problem is either moral flexibility (which I do not suggest) OR a moral stance which is not dependent on the material facts.

We hold these truths to be self-evident: that all men are created equal.