Recap (click to show/hide)

What you quoted relies on a premise: two people do not share the same national identity. That premise is denied in example B, so far as I am concerned:
And if B thinks I belong to a different nation, but I think B and I belong to the same nation and I think the law backs me up , I still think B and I belong to the same nation.

So, circular reasoning, then.
Where? Circular reasoning involves the conclusion being a premise in its own argument, but I haven’t done that here.
You must think ‘a Black who doesn’t identify with slaveowner descendants’ is the same as ‘a descendant of slaves who doesn’t share the same national identity as a slave-owner descendant’. They are different, to me.
I don’t mean Black vs descendant of slaves. I mean, ‘doesn’t identify with X’ is different from ‘doesn’t share the same identity as X’. See the second half of post #397 and the last paragraph of post #390.
~Max