So now we have an admission from you that some (much) of what Luther preached was false and that you, and only you, get to decide which is truth and which is a "sacred cow of Catholicism". You are not alone is your hypocritical assertions that everything good spoken by the elders of the reformation was due to some divine revelation on par with a Road to Damascus experience and that everything dirty or evil done by them was due to their Catholic roots. The really bizarre thing is that those of you who are spouting this are too damned stupid or biased to recognize the duplicity.
Do you believe that the Trinity is just another "sacred cow of Catholicism"? How about the Virgin Birth or the curing of the sick or the raising of the dead? Is the Resurrection too just another "sacred cow of Catholicism" too?
I'll give you credit for this, your goofy positions are entertaining and funny if nothing else.
Luther is a Sacred Cow of Cathoicism? Wow.