BTW: Why should I regularly report rape crimes of Austrians or Germans, when in fact a disproportional amount of rapes are committed by non-Austrians or non-Germans ?
Yes, Austrians and Germans rape and this sucks - but we have to look at the share and here the statistics speak volumes: If a population group makes up 1-2% of the population and commits 15% of the rapes, there's a problem. Obviously, you will just continue to ignore that problem, as usual ...
I would say the problem is that rapes are being committed at all btw.
You seem to accept rapes committed by natives as normality, and only when this normality is disturbed are you interested in it as a "problem". I'd say every rape is a problem.
I would note that Tender's logic is basically the same as #BlackLivesMatter; a certain group is overrepresented in this social ill and we should deal with that. Your response is equivalent to #AllLivesMatter; that is, this social ill matters and should be addressed regardless. Philosophically I agree with your POV, but practically we can most efficiently deal with the problem of rape by targeting those factors that most strongly correlate with the problem of rape.