While it was a poorly written article using far too many words, I read it all and understand the financial aspects of buying and selling human beings. However, it is absurd to claim that African slaves were treated better than anyone.
Heck, the article touches on conditions for the European slaves in 1618. Blacks were held in slavery in this country until 1865.
From where I sit, perhaps just three miles down the street from here, sycophants of the Confederacy sold the children of black slaves to the highest bidder.
I have read no accounts of 19th century Europeans having their children sold off to the highest bidder down in the markets of New Orleans.
You are correct about black slavery lasting much longer.
Two years of life expectancy probably doesn’t leave a lot of time for having a family. African slaves were expensive. It only stands to reason that they would be bred like livestock, however distasteful that may be.