who should be persecuted ? individuals or the institution's that instigates individuals to do social ills.

I have seen so much double standards , e.g in Nazi-Germany, the institution was blamed; in religious

conflicts,individuals are blamed ;in apartheid, the institution was blamed. who should be persecuted?

Can you break it down a little bit more>

@ brand-new;, I will break it down with the example of radical Islam; the Koran instigates some to violence, due to there personal interpretation of it's text. In a political correct world the miscreants are blamed and the Koran/Islam exonerated. My question is, when should the crux/source of the problem be blamed, or when should the individual instigated by the institution or text be held accountable; Example 2, in the case of Hitler's Nazi ideology, or the crusades/Inquisitions instigated by Christian Popes/ the" Bibles burn the Witch" policies , the world preferred to place more blame the institutions and not the people who enacted their believes. My question boils down to who should be blamed, the source of the problem or the individual who got motivated by his religion/text/institution, Hope this clarifies my question.