It is foolish to destroy people just because someone in his sick imagination think that people living a few thousand miles away from him to blame for his troubles. This is the real fascism. If you want to make the world cleaner, start with yourself.
Exterminating whole groups of people was tried many times before, but it was not always successful. The Catholic church started this practice in the 16th century, by exterminating the native American tribes. Right now, we have the ISIS trying to exterminate the Yazidis and the Turks trying to exterminate the Kurdish people.
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