What? Are we still talking about religion? You know the shit about "the world has been created by god 5k years ago and evolution is just a myth"?
Same thing for Christians. It's just that most of our socities have less and less idiot Christians that's all.
Christians most likely not going to chop off any of your parts if you not acting as they like. They also not used to blow themselves off on crowded places. Most importantly if some of them would do the above mentioned things they surely not going to be celebrated as the heroes of christianity. So yes there are some objective measures what can make a given religion worse that others.