I understand what you are saying, but it has absolutely nothing to do with the discussion at hand. No one is passage combing or taking the words of Paul as being directly from God. I am doing the exact opposite, I am taking Pauls words, putting them in context, and inferring the facts from that.

In I Corinthians 7 Paul says:
Now to the unmarried and the widows I say: It is good for them to stay unmarried, as I am. But if they cannot control themselves, they should marry, for it is better to marry than to burn with passion.

He doesn't bother explaining why sex outside of marriage is not an option for Christians despite the fact it is the norm in society. Thus, we can infer from this that it was already an accepted tenet of Christianity and not just something Paul taught. If it weren't an accepted tenet of Christianity, Paul would have had to spend some time explaining why simply having sex with your beloved is not an option. He didn't spend any time doing that, he didn't need to because they already knew.

Now, of course you could make the argument that the church had it all wrong back then. That would be a perfectly valid argument if you have some reason to believe that. But to claim that we can ignore that teaching because it was simply one man's ideas is not a valid argument because the evidence shows it was not one man's idea, it was the accepted teaching of first generation Christians, those who were taught directly by people who spent time one on one with Jesus while he walked the Earth.