NO!!!!!  We don't need to be casting ANYONE aside.  
As a conservative, each of us must say what we believe and, if that belief aligns with some basic conservative tenets, we are a conservative.  There are Jewish conservatives, Christian conservatives, atheist conservatives, libertarian conservatives, black conservatives, racist conservatives, gay conservatives, etc. etc. etc.  Welcome all.
The best way for conservatives to counter "stupid" conservatives is to not only NOT be stupid ourselves, but to let the world know that we're conservative too.


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