Save your breath. CarlitosHighway's posts on this thread shows he's just blindly running defense for Germany's status quo on defamation laws low threshold for abuse on every argument someone brings, not being open to arguing in good faith, weightings in on the pros and cons of this, so it doesn't matter what counterexamples you keep bringing to him, it won't change his mind, his replies will be more "anecdotal" snarks.

When you see the pattern, best to stopped arguing with such users as their goal is not an honest debate, their goal is just to 'DDoS' you with their opinion.

Maybe there is a German law against spamming.

Depending on the spam, there is yes

§ 7 UWG Gesetz gegen den unlauteren Wettbewerb

There's no point in weighing the pros and cons of laws, if people want to change them, they need to pursue the official lane to do so. Arguing on this American "Brainiac MAGA" forum will not help them in their goals to make Germany more like the US.