"Einer allein von 2000 Million Menschen der Erde darf in Deutschland nicht reden" => "He alone from 2000 million humans on earth isn't allowed to speak in Germany." - propaganda of the NS.
We had hate speech laws since we had an emperor. Freedom of opinion is one of the most fundamental rights in modern Germany.
History of hate laws in Germany here: https://scholar.google.com/scholar?cluster=12273096193760058...
> On May 23, 1949, the Basic Law of the Federal Republic of Germany was promulgated to serve as the cornerstone of a democratic state designed to protect individual liberty. Accordingly, the Grundgesetz, or Basic Law, is patterned upon the tradition of Western constitutionalism and is a direct historical reaction to the disastrous Weimar Republic and Third Reich." The Basic Law regulates two types of rights and relations. The first type, the Basic Laws, pertain to the rights of individuals and the state. The Basic Laws are characterized by many of the classic human rights found in the U.S. Bill of Rights. The second type, the Rights to a Free Democratic Order, concern the rights of governmental organs, the organization of the state, and the relationships between the various state organs.