Roman Popes teaching that slavery is a good, celebrating and promoting it

Yeah, AND Tim Staples. They make some points.

 

Never heard of Tim Staples. But I read many of White’s books in the course of my evangelical upbringing.

 

This seems quite similar to another papal Bull,

Cum nimis absurdum (1555), which told Christians not to do business with Jews or to see them as equals

Cum nimis absurdum was a papal bull issued by Pope Paul IV dated 14 July 1555. It takes its name from its first words:[1] "Since it is absurd and utterly inconvenient that the Jews, who through their own fault were condemned by God to eternal slavery..."

The bull revoked all the rights of the Jewish community and placed religious and economic restrictions on Jews in the Papal States, renewed anti-Jewish legislation and subjected Jews to various degradations and restrictions on their personal freedom.

The bull established the Roman Ghetto and required the Jews of Rome, who had existed as a community since before Christian times and numbered about 2,000 at the time, to live in it. The Ghetto was a walled quarter with three gates that were locked at night. Under the bull, Jewish males were required to wear a pointed yellow hat, and Jewish females a yellow kerchief. Jews were required to attend compulsory Catholic sermons on the Jewish shabbat.
https://en.wikipedia.org/wiki/Cum_nimis_absurdum

All these bulls from the Popes seem pretty clearly to be more than just disciplinary measures, but egregious errors in doctrine, formal and explicit heresies taught in the Roman church, by the Roman pontiffs

 

Here's an interesting video that compares the slavery issue (quoting Lincoln) to the right-to-life issue.