Well, now almost everyone in Germany talks about the Comedian and the Turkish President ignoring the much bigger scandal popularized by the term "Panama Papers".
I'm not from the "conspiracy lunatics" fraction but let's dissect this whole stuff a little bit less emotionally:
a) In Germany we have very independent courts.
b) and a very stable democracy (which most of us are truly proud of)
c) and in fact we do have such a silly paragraph that 'protects foreign diplomats' from being 'insulted verbally'.
d) The current government also announced that'll soon throw out this obscure paragraph, which btw. was mostly used by the former Iranian Shah Reza Pahlevi to attack its critics in Germany (that's why we call it 'the Shah Paragraph').
Anyway, I'm very confident that our democracy is stable enough to handle anything, even the childish behaviour of a foreign head of state. By following our laws, no matter how ridiculous the paragraphs may sound, we _protect_ our democracy and dignity.
I'm not a fan of Merkel but one thing is clear: Our Chancellor is governing our country while some others prefer to sue comedians. ;)
I'm not a very political person nor a member of any of our parties but I always go to vote.
That's how we protect our democracy. By letting people vote, the government govern, and courts do jurisprudence.
And we'll never ever sue our comedians. In fact, Erdogan helped us clean up our constitution by throwing out a useless paragraph.