Okay, so congratulation, both places are ignorant. That's not exactly a new revelation. The decision you now have to make as an individual is are you okay pandering to that ignorance? Or are you better than that. Writing blackface off as tradition and treating it as being innocent means you are not. It means you are welcoming the ignorance.
Edit: The part that makes this some sort of meta-ignorant is that so many Europeans are quick to dismiss Muslim people for their traditions. Meanwhile defending their own insensitive traditions as if they were just.
I find it kind of hard that some parts of Europe can't see even a tradition can be wrong. In the UK we still have people that won't move on. Black face etc here in the UK isn't illegal but is looked down opon. You will get asked to wash it off etc if a police man sees you and you will probably end up in the press getting ripped apart. Like when Cameron posed with Morris dancers who blackfaced he was deemed a idiot and they were deemed stuck in the past racists.