Probably because your comparisons are extremely superficial. Jews have been persecuted in many different countries. It's a completely different situation from Tutsis in Rwanda, for instance.

The only other group mentioned by you that has been discriminated against in many different places are the gypsies, but again the reasons are very different.

Probably because you made some points of discussion that could only be linked together in the most vague context without demonstrating any real knowledge on the subject at hand.