Once again, the people committing those crimes are, by definition, not Christians. A Christian is one who obeys God. That's what the Bible says. So if someone disobeys God by raping, killing, or whatever, they are not Christians. By your argument, someone who eats pork can be a Muslim, just because they self identify as one. I'm sure the real Muslims would have a problem with that.
There are many people who were born into a muslim family but never set foot in a mosque or picked up a Qur'an, who do bad things.
Same with self identifying Christians who have never been in a church or opened a Bible, who commit crimes.
Yet you lump all muslims together, and blame the entire ummah (all muslims) for the actions of the criminal ones.
As a Christian, that you claim to be, you should re-examine how you slander the good muslims, for the acts of the bad people. ....