I rail against Christianity, not necessarily Christians. Christianity has a doctrine and a history deserving of harsh ridicule and condemnation.Yes, you do want to set the standard for your own morality, that is your sinful condition.
I notice that you demand atheists are not disparaged, but that you have no issue when christians are disparaged. So that high horse is one you should not be riding.:-)
Atheism demands a very limited view of the world based on a biblical truth, that states that men suppress the truth of Gods existance because of their love of sin.
Look at what Christianity did to you. You aren't able to learn anything that contradicts your programming. I learn new things everyday, and change my mind often in response to better information coming in. My morality and ethics continue to improve as I learn more about the world and humanity. Your worldview was born thousands of years ago out of ignorant tribalism.
There is nothing in the Bible or in the behavior of Christians that suggests a link to a deity. It's a religion. People in religions believe their religions. There are many religions. If all those people believe just like you do, what sets you apart? Do you believe they are being deceived or deluded? Could that not happen to you? Are you immune to being deceived?