If you are one of those people who is preternaturally compelled to criticize faiths and the faithful, that is your right (in America, anyway).
If you want your critique to be taken seriously, however, try focusing on one faith at a time. Indiscriminately lumping all religions together and then opening fire is lazy, imprecise, often wrong, and readily dismissed by anyone who does not already agree with you.
We all may look the same to you, and there are always similarities. But if the differences are important enough to keep us in our separate houses, they are important enough for you to understand before you join the conversation.