But you're apparently not familiar with basic Christian theology. See, the Old Testament is only part of the Christian bible as it provides the prologue on what is a millennials-long story arc. Mosaic Law (which over-wrote the Code of Hammurabi etc.) is itself over-written by Christ's "Mosaic Anti-theses:" "Love your neighbor as yourself," "Do unto others..." "Let he without sin cast the first stone," etc. No Christian sect (again, outside the 40 people in the Westboro Baptist Church) follow OT writings as canon when they are specifically over-written by NT writings. That's sort of the whole focus of Christianity.
You Leviticus-citing anti-Christian Internet "theologians" are even more pathetic than the Internet "tough guys."
For the complete set of stats re which barbaric and medieval Islamic laws are still practiced today and where, see this link. Hopefully you are open to being educated and are not just a woefully ignorant bigot.
You have mail.