i have no problem with Christianity, or any other religion for that matter. many of the concepts are fine and people can believe whatever they want as long as it doesn't interfere with my own life. the line i draw (much like you) is when beliefs start being forced upon those who have already chosen to cast them aside. it happens in almost every religion, not just Christianity, and it annoys me.
the number one thing i like about atheism is that it does not hold an agenda. atheists form their own morals, values, and schedules. we do not hold meetings to discuss what we do with our lives, we do not ask each other to divulge secrets, we do not ask each other for love, we do not ask anything of each other. we recognize that the concept of good and bad behavior was invented by the thought of some men, not the existence of humanity, and therefore we form our own interpretations of what is good, what is bad, or whether our behaviors can actually be classified as such.
i enjoy atheism. i do not tire of it, i cannot be defined by it, it does not influence me. the only things that influence me are the things i know. as far as safety goes, yes, my choices are for the most part, still as safe as any religious choices, but they are my choices, and therefore provide the best opportunity for exploration.