Even an Atheist can Quote Scripture

I don't have a whole lot of patience for preachers teaching from the Bible. However, what really annoys me is preachers who claim to be teaching from the Bible that are ignorant of what the Bible actually says. Today, on NPR, I heard a piece on gay marriage with a Baptist preacher opposing it by exhorting his audience,

"They are trying to redefine marriange so that it will conform to the imperfections of people."

This annoys me, because the Apostle Paul explicitly states that marriage is a concession to our imperfections:

Now concerning the things about which you wrote, it is good for a man not to touch a woman. But because of immoralities, let each man have is own wife, and let each woman have her own husband. - 1 Corinthians 7:1-2

Now, I don't agree with the Apostle Paul. However, I am doubly annoyed with the preachers who misquote the Bible to peddle their bigotries. They are the ones seeking to appeal to those with itching ears (2 Tim. 4:3) with an easy morality that focuses its outrage against "those people." After all, putting obstacles between loving gay couples getting married is so much easier than doing something about the beams in their own eyes (Matthew 7:5) - poverty, illness, violence, misogyny, racism, and homophobia.

Will the people who need to hear my complaint? Or will they just tell themselves that even the devil --- or an atheist --- can quote scripture (see Matthew 4), and ignore their conscience?