dude, you know that in islam you can not enslave free man? i
Stop reading orientalists and evangelic shits, read some more nuanced and comprehensive works to broaden your narrow perspektive.
You obviously does not understand islamic doctrine about it, basically islamic slavery is like modern contract between employer and employee, deviations from it is completely other subject.
And when you mentioned christianity in that context, please read scriptures what they say about status between master and slave, it is like horror movie.