Germany is now deporting pro-Palestine EU citizens. This is a chilling new step
(www.theguardian.com)
Insult is a crime in Germany regardless who you insult. It's Germany, not the US. You can't just harass people here, regardless of their status.
It alone wouldnt warrant deportation. However the article is still missing information I find in German language articles.
Also I support the "enforced politeness" but find that the fines are a bit excessive. Should rather be treated like a traffic infraction instead