SG, I don't think even the most rabid RC would see a (pregnant) woman as a slave to be slaughtered. :( I also doubt that many would say that her life doesn't matter because she is going to heaven anyway. I think this is a case of making yourself a big bogey in order to jump on it.
While agreeing that most religions desiderate the fair treatment of slaves, xtians were the first to argue against them tout court, and - this is the key thing - they convinced virtually all other xtians who didn't have an immediate monetary interest in not being convinced. By contrast, Islam serenely kept thousands of slaves in the indisputably great years of the Abbasid Caliphate. Not sure what happened after its collapse - must find out, but it was in other respects a dazzlingly enlightened regime of classical learning and science.
While I agree that Xtians perpetrated some terrible atrocities in all colonial spheres, and in fact I can think of much more obvious examples of religious horrors than those you cite, in what way did the people you cite use xtian teachings to justify them? I grew up in oz myself and have v. strong views on the stolen generation, but it was mostly justified by entirely secular arguments about human evolution and the supposed elimination of a people who could not 'adapt' or 'become civilized' and were thus a waste product; in fact it's because of this that I dislike Dawkins so much, though of course it's not his fault personally any more than it's mine personally that the Rc chruch does and is some terrible things. You can see these ideas at work in history books of the era, I'm afraid.
Grimma, I fear history doesn't bear out your confidence about a good legal system. Far from it. Think: you are an Austrian and it is Silvester 1938, New Year's eve, and you are happy and you are a citizen of three generations' standing whose father fought in the Great War in Austrian uniform. You are, let's say, a doictor, and your son is a lawyer. Your daughter too is at university. Only you are jewish, and in a few short months you will lose every single one of your rights and every single one of the laws that protect you will be smashed, and all your property will be confiscated. Laws are worth nothing if people don't uphold the law of love.
Thistledew, I'm in some sympathy with your views on hellfire, but I would like to point out that it doesn't occupy a lot of space in the NT. I never think about it much, and most of my religion don't either. I would never presume to say that you or anybody else is going there because you don't perform certain rituals - how absurd! Nor can there be IMO ANY justification in religion for being unkind or intolerant or aggressive.
But careful, because that's a pretty dogmatic statement.. but is that dogma all right? To me it is. Love is the law.
Finally, Hima - I always knew we were akin! Yes, yes, YES Green Day. I love them. Especially American Idiot. I have tickets for their 2013 tour - yes, already. Hope Billy Joe is back on his feet by then. From which you will gather that I'm not one to be put off by vehement antixtian polemic.