Turkish people in Germany claim that they are getting discriminated?

I have been to Germany awhile ago and i Have to say this is total bullshit. Turkish people are discriminating German people. They rape German girls, they beat German people up and in their Turkish stores they do not hire Germans. I have this German friend she told me she went into a shoe store were only Turkish women are working and they asked if they are hiring people and they said no. A few days later her turkish friend told her that she went there and asked same question and they said yes and gave her an application. I also do not understand if turkish people feel so discriminated in Germany why dont they just go back to Turkey. I have heard so many turkish people say how shitty Germany is and how much they suffer but they have a home country why dont they just leave then?? I have not once been discriminated in Germany and I am from Brazil, I have dark skin. I also have some black friends in Germany and they said same, they love Germany they feel safe there but they also said that turkish people especially the teenage boys and girls behave like spoiled uneducated kids. It's not the German boys who rape and beat up turkish girls, it's the turkish boys who do these things, I have also heard from many bulgarian friends that the Turkish people who live in their country behave exactly the same way and the turks in turkey are embarrassed of their folks behavior in Germany. However i read all the time in the news how german people apparently discriminate Turkish people, this is total bullshit, I have been there and I have seen it. If you turkish folks do not like it in Germany then leave and go back to turkey no ones forces you to stay. I enjoyed Germany and hopefully can come back soon. These Turkish people have no respect for other cultures and other people, how can anyone have respect for them?? Seriously people go to Germany and look at it yourself you will be surprised.