5m-10m as a proportion of the affected populations in Roman times is enormous. Roman Britain had a population of only c 4m for example, so the impact of slavery could have been much greater than the later European / Arab exploitation of West Africans....but I guess the Roman slave numbers would...
Pretty much this. Different times. The U.K. General population wasn't living in some sort of pastoral idyll or comfortable gated community and counting their personal profits from slavery. They couldn't vote, had no meaningful education system or welfare state to fall back on, were largely...