For centuries the Ottomans raided eastern Europe and the Barbary pirates raided European shipping and Mediterranean coastlines...
I know—the Turks enslaved my ancestors. ANd when they could not any moe they genocided them.
As for your comment about abolition of slavery in Muslim countries - SLAVERY IS ALIVE IN WELL IN MUSLIM COUNTRIES TODAY!
It exists in some, not all. It is generally technically illegal even where it exists.
Unless we're talking informal slavery, as of female and child "sex workers," and if we're going to count them we have lots of slaves in this country.