Nice try. I went to a Church of England school as a child, went to church and Sunday school, grew up in a christian community and, yes, have read the Bible.
The point of my meme wasn't to attack its believers, but to highlight the point that the Bible is, whether you like it or not, filled with lots of arbitrary nonsense that modern western Christians (rightly) ignore, and which clearly demonstrates that (contrary to the beliefs of many Christians, including some with whom I grew up) we develop morality within our society as an ongoing process and did not have it "revealed" to us.
On this particular subject, if you are going to "say that the behaviour practiced by a certain group of people is wrong", you'd better have something a bit more convincing in your corner than a book of fables, written by people who knew less about the universe than the average modern-day 5 year-old.