One thing it certainly shows is either complete ignorance or disobedience to God's word in the Bible. And that's one thing if the candidate is an atheist, but if they call themselves a Christian it's something quite different. It's saying you know more than God and can make up your own rules as long as it seems ok to you. And more and more our world and country are showing the ill effects of having millions and millions gods running around pleasing themselves first and foremost.
Rom 1:31 Without understanding, covenant breakers, without natural affection, implacable, unmerciful:
Rom 1:32 Who knowing the judgment of God, that they which commit such things are worthy of death, not only do the same, but have pleasure in them that do them.