Ingemann gave the perfect answer here:
This is really one of those issue with a naive black-white dichotomy not only not make a lot of sense, but also show that the keeper of such opinions is a little simple.
Was it a good idea, that Germany, France and other countries made such a ban after WW2; yes. Would it make a lot of sense to make the same law in Denmark, Sweden or Finland after WW2; not really. Do Germany or France need to keep it today; not really. Do it harm anybody that they keep this law; yes some pretty horrible people. Do I care that these people are harmed by this law; not really. Is abolishing the law worth the whining and international condemnation from Jewish organisation and Israel; again not really.
Conclusion: Keep the law if it already exist, but don't create such a law if it doesn't exist.
This. I could see an argument for quietly ceasing to enforce these laws over time, but repealing them outright doesn't strike me as a good idea.