Why?  Let me apply the principle you claim to be the case in a different, ahistorical way:<p>&quot;&#x27;We need to start learning how to simply NOT THINK about denigrating and enslaving blacks, and NOT MENTION IT.&#x27;  We live in a world where this is not remotely possible.  Suggesting it is the worst sort of idealism.&quot;  --some Southern slave owner, 1859<p>The same could be applied to historical anti-semitic movements, anti-suffrage groups--anti-anything groups, really.<p>It can be boiled down to: &quot;We need to start learning how to simply NOT THINK about treating other people badly because of their appearance or where they are from, and NOT MENTION IT,&quot; and people like you saying, &quot;That&#x27;s impossible.  We will always be just as hateful and prejudiced as the worst of us are now.  You shouldn&#x27;t even suggest that it&#x27;s possible to make any progress in human society.&quot;<p>It boggles my mind that you could even think this way.  But, then, people thinking and acting in unreasonable ways is the root of these problems.