“Of course, Catholics were only using between 70 and 80% of them, that left plenty for Protestants.”
You don’t even the problem of you apparently just making up a number out of thin air do you?
You’ve never looked up where the millions and millions, and millions of slaves were going to?
Actually, the 70-80% seems to be too low from what I’ve seen. I googled slavery and North America and South America and all the sources with a number have so far said over 90% went to South America.
For example, from PBS’ site, “How many slaves landed in America,” it says from the shipping records, I believe, they show that 12.5 million African were shipped to the Americs, 10.7 survived the trip, and of those only 388,000 were sent to North America.