Equality was not practiced by some of those who signed the D of I who had slaves.
Some of whom relied on a considerable number of passages in the Bible, not the Quran, to assure themselves that they were doing the Right Thing by owning other human beings. Our Founding Christian Fathers.....
The link depicts the UNPRACTICED AND UNKNOWN fantasy of Islam, not the practiced and known reality of it as practiced and taught by Mohammed and his desciples.
Yeah, such a thing could never happen in Christianity. All the Christians I know give all their worldly goods away and live in communes, like the Epistles say the should.