Your claims were that "not getting insulted is a protected right in Germany that you generally lawfully defendable under the "Notwehr" laws." and that "you may hit someone who keeps insulting you.".
Not sure what you mean, I provided sources and examples for both.
More sources:
> Mithin kann das Recht auf Notwehr grundsätzlich auch bei einer Beleidigung greifen und nicht etwa nur bei einer Körperverletzung oder Ähnlichem.
> Consequently, the right to self-defense can, in principle, also apply in the case of an insult, and not just in cases of bodily injury or similar offenses.
Yes, the specific sentence you quoted was too hand waiving, not every insult can result in lawful self defence, but generally, defending against insults can be lawful.
Similarly, not everything somebody writes is protected by copyright, but generally what somebody writes can be protected by copyright.
Your claims were that "not getting insulted is a protected right in Germany that you generally lawfully defendable under the "Notwehr" laws." and that "you may hit someone who keeps insulting you.".
Both are false.