That argument is often repeated, but incorrect. They made the same kind of arguments about The Fall of The Roman Empire.
Catholicism is based on Divine Revelation, drawn from The Bible. The Bible is clear enough on Race. Yeah, it exists and it matters, even from the author you quoted. That same author has also said, he is a Roman and a Benjamite. So to the author you quoted, race matters, but religion matters more. It's a heirarchy; it isn't "all or nothing."
Wrong. If you want to preserve individual races then you cant be catholic.
You will have to go with racial christianity such as 12 aryan nations or kkk or the 12 tribes of israel.
It is called Christian identity.
If he said he was a benjamite, he was trying to appeal to the jews at the time, who were racial supremacists and still are.
He was trying to say he was one of them, therefore he deserves an audience on that credential.
But his ideology teaches that the races are equal and that the distinctions dont exist, because all humanity is part of a spiritual race called the children of abraham. If he was a racial identitarian then why would he dissolve his own identity and absorb it into a new super identity of the members of the church being a new race called the children of abraham.
Abraham was a jew, he is dissolving his own race by absorbing all and classifying all humanity from all races as his descendants.It was not semantics or symbolic, it was literal, therefore the church has always being anti racism agitators for the mass immigration into white countries.