Seriously, these are the kind of nutjobs that make religion look bad. They aren't even Christian, they just have the audacity to call themselves that. Real Christians, if they had an issue with something you're doing, would be like, "Hey, I'm not cool with that, here's why I think it's a bad idea. But I forgive you for doing it."
I believe these days we have far, far too many people that put themselves under a religious banner only to ignore the parts of it they don't like. What happened to forgiveness, love thy neighbor, all that? Hell, it's even part of the Lord's prayer. "Forgive us our sins as we forgive others for theirs." Something close to that.
I'm not particularly religious, but I can respect those who are, but I have absolutely no respect for hatemongers like this.