Huckabee should try actually READING the Bible for once, rather than just making asinine comparisons!
While homosexuality and incest are BOTH explicitly forbidden in Scripture, polygyny (the correct term) is not only NEVER forbidden by God, but can be required (there are at least three such conditions in the Bible, which any literate pastor should know; any self-proclaimed "scholar" should be able to name at least the most obvious one).
And finally, there at at least two prophets (Ezekiel and Jeremiah, for starters) who write of God Himself as the Husband of more than one wife!
Huckabee should learn to “study for himself” before trying to play god and rewrite the Word.