"Open your friggin' eyes."

Here's the fundamental problem with discussing anything with religious people; their default position is EVERYONE who doesn't agree with them is wrong, otherwise they would have to accept their faith might be misplaced . . . and that would imply the possibility of God not existing, something they incapable of accepting if they are true believers.

I would suggest the reason for the rejection of established, instutionalised religion is philosophical as well as ideological, and depend on whether one believes the individual is ultimately responsible and answerable for their own actions regardless, and whether in time we are capable of understanding that past actions have consequences to this day.

Would you let a Concentration Camp guard off because he's old? Would you tell everyone in the North of Ireland to forget about the troubles because some of it happened in the 1970s?

I would suggest you might want to open your friggin' mind.