> It is perfectly legal to offend people in Germany.

No, wrong, it isn't.

https://dejure.org/gesetze/StGB/183a.html https://dejure.org/gesetze/StGB/166.html

Sexual and religious offense. Both predicated on someone being (even just possibly) offended.

https://dejure.org/gesetze/StGB/185.html https://dejure.org/gesetze/StGB/188.html

General offense, usually only prosecuted if the offended wants it (but the prosecutor has discretion to proceed without). Harsher punishments if the offended is a politician.

https://dejure.org/gesetze/StGB/104.html Even just offending other states by burning flags is punishable.

So you couldn't be more wrong. (I personally think those laws are BS and should be done away with.)