That's a very good observation. I should've made sure to say that not all illegal acts are created equal, and those which are illegal to advocate for, are specially listed [1].

In summary, those basically are high treason, murder/manslaughter, assault, robbery, counterfeiting, creating fire/explosions/radiation, destroying/interference in infrastructure (planes etc.).

[1] https://dejure.org/gesetze/StGB/138.html