Here is an atheist doing exactly what he’s accusing Christians of doing—promoting misinformation, using bad logic, and ignoring basic facts.  http://www.addictinginfo.org/2015/06/15/christian-pundit-desperately-tries-to-equate-same-sex-marriage-to-polygamy-child-brides-video/  Here’s one example, he faults Cal Thomas for pointing out what I think is obvious—that changing the law regarding marriage can lead to a whole bunch of other “non-traditional” marriage rights being fought for (polygamy, adult-child marriage, etc.).  But he simply states that there are laws against polygamy and adult-child marriage and considers the debate closed.  However, he ignores the fact that there are laws in many states prohibiting homosexual marriage!  If those laws can be overturned, so can the ones governing polygamy and adult-child marriage!