A) The basis for atheist morals are very simple: "What would happen if everyone would do it?"
You seem to base your argument around it being a God and that this God have given us morals. Remove God from the equation and what are you left with? You also seem to have exclusively read propaganda trying to explain how Atheists struggles with morals. I would recommend you to read some atheistic texts explaining atheistic morals.
B) What are you arguing for then? I have showed you that christians are less moral atheists. Then how oh how can you go on about atheists having no base for their morals? Try and look at society as it IS instead of how you want it to be.
Fact: Christians are less moral than atheists.
Logical conclusion: A atheist society will be more moral than a christian one.
What in this line of argument is it that you argue against?
And to answer your last bold bit: Easy... Hitler was wrong because if every race would try and conquer and exterminate the other races we would have a rather unpleasant world.
C) I have often seen Christians using the "Hitler was atheist" argument, and it's just stupid. Rhyf already explained why if you didn't get me.
This thread is pointless, it doesn't matter if Hitler was an atheist or a Christian since what he did wasn't related to those beliefs.
Bookmarks