Perhaps this is one reason why. From wikipedia http://en.wikipedia.org/wiki/On_the_Jews_and_Their_Lies
On the Jews and Their Lies (German: Von den Jüden und jren Lügen; in modern spelling Von den Juden und ihren Lügen) is a 65,000-word antisemitic treatise written in 1543 by the German Reformation leader Martin Luther.
In the treatise, Luther describes Jews as a “base, whoring people, that is, no people of God, and their boast of lineage, circumcision, and law must be accounted as filth.”[1] Luther wrote that they are “full of the devil’s feces ... which they wallow in like swine,”[2] and the synagogue is an “incorrigible whore and an evil slut”.[3]
In the first ten sections of the treatise, Luther expounds, at considerable length, upon his views concerning Jews and Judaism and how these compare against Christians and Christianity. Following this exposition, Section XI of the treatise advises Christians to carry out seven remedial actions. These are
for Jewish synagogues and schools to be burned to the ground, and the remnants buried out of sight;
for houses owned by Jews to be likewise razed, and the owners made to live in agricultural outbuildings;
for their religious writings to be taken away;
for rabbis to be forbidden to preach, and to be executed if they do;
for safe conduct on the roads to be abolished for Jews;
for usury to be prohibited, and for all silver and gold to be removed and “put aside for safekeeping”; and
for the Jewish population to be put to work as agricultural slave labor.[4]
So, you agree with Luther?