I don't see Germany tolerating any support of National Socialism in their public sphere and rightly so ... some ideologies just too bloody abhorent and against the public good.
Contrary to popular believe we already had laws against hate-speech in the middle of the 19th century. The authoritarians used that regularly to underline their alleged prosecution. And it worked because they were right to a degree.
You can only remember the lessons of the past if you understood them in the first place. And frankly, arguing for more content controls by authorities is an insult to anyone actually having an understanding of those times.