There are more people enslaved now than at any point in time in history.
Guess the countries.
There has never been as many slaves in humanity as there are in the US' prisons.
What's that? Oh, they don't count because they're criminals?
Meanwhile, in history, religions enslaved people.
Returning to the point you keep dodging, that includes Christians.
I have no idea what that sentence is specifically meant to mean, that aside, western countries have had actual slavery and effective slavery both in the past and the present.
eg: Past & actual: https://en.wikipedia.org/wiki/1838_Jesuit_slave_sale
'Present' (Post WWII) & effective: https://www.abc.net.au/news/2014-04-27/child-abuse-royal-com...
I don't mean to exclusively beat on Christians or just Catholics here; but I do intend to counter your apparent narrative of good Christians and evil Muslims.
Christians certainly diminished a lot of cultures, just as other religions also did - the initial point that started this above.