"Neo-Nazis are not a protected class"
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Neo-Nazis aren't and gays are.....simply because of a quirk in the timeline....a quirk in the decree by mankind......which is subject to change from country to country and from decade to decade. 
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Who and what is and is not "protected" according to "mankind" depends solely on who is the "top dog" at any moment in time. 
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Hitler is a good example that "nothing is written in stone".....unless it is written by God Himself.....and that the "sinfulness" of mankind can lead to disastrous results.