Whatever group is in control is resented by the groups not in control.  This principle applies to Race , Gender , Politics , Religion , Ethnicity , Culture , Social Class , etc.  
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The <b>ins</b> should always expect  outcry from the <b>outs</b> .  The only way to silence the <b>outs</b> is to let them <b>in</b>.  But this means you will be <b>out </b>. 
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And so it cycles.