Funny, in all my reading of history, I missed the part where Hitler had all those people killed for not becoming Catholic.
One thing that can't be argued is how this world would be better off without religion.
The immeausrable good that has been done through the ages with God fearing men and women can never really be meausured.
The impact of Christianity bearing goodness on this world must certainly outweigh, by the score, any negative problems that may have also occurred.