 Variety is of God - He loves it and created the universe in that way to prove it.  
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 Diversity as it is used in the Political world implies disagreement, conflict and impasse.
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Example:  Hispanics are a different equal variety of Humanity and this is good.  Not agreeing to speak English in America is bad.
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Example:  Arabs are a different, equal variety of Humanity and this is good.  But bringing a contrary religion (Islam) into the U.S. is bad.
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Different opinions on the nuances of life (economics, politics, religion, etc.) are healthy.  Conflicting agendas such as Socialism vs Capitalism, Islam vs Christianity are bad.
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Being able to distinguish healthy variety from destructive diversity is wisdom.  The fact that we have leadership who does not recognize the difference (or care about the difference) is our problem.  They have put us in jeapardy to destructive Diversity .