Considering that you're looking at political views. I would think that something along the lines of Rawl's reflective equilibrium might be more useful than simply virtues. In constructing a society, we may view these three traits as undesirable in a population at large and so also view political theories that endorse them as being incorrect in our idealized society. Additionally, this allows you to link up your study with a possible theory of justice over and above what virtues might be at play and the need to make moral arguments against these views. That's just my thinking, but the first thing that popped into my head was that one can analyze these political philosophies as either standing or falling in reflective equilibrium. Which given your study results, they may not if they correlate with these three bad virtues that we wouldn't want in a society.

Growing up in a christian home, I already had some bizarre guilt related concepts attached to porn. Mainly about the whole lusting after women part. But I'm concerned about what would happen if you then added in the fear that porn may make make me homosexual (though I guess it did turn me bi). If you come from a home that would peddle this lie, you likely believe that homosexuality is evil. So being told that not only what you are doing is wrong, but may make you evil is a traumatic thing to do to a child who is really just acting normally. Even without this lie, christianity screwed up my views on porn for quite a while, I'd hate to think what would have happened if this was added in. And the thing that comes to my mind when I hear this is not so much laughable, but that it is truly sick and twisted to try and manipulate children by simultaneously distorting their views on sexuality and distorting the views on homosexuality beyond the usual drivel.