True - but then the people involved should divorce first, and then engage in whatever relationships they want, instead of pretend to maintain their marriage contract while they break it. It's not adultery itself that is wrong - but the deception that goes along with it. — Agustino
Being the pessimist you are, you surely hold to the idea of a profoundly flawed, lying, cheating, stealing, sneaking, and conniving humankind whose very nature it is to be hypocritical: thinking one thing about themselves, but actually doing something quite contrary. Original sin, in other words. In some ways, original sin is the most valid idea in all of Christendom.
It's one thing if people are just too stupid to behave properly. They can be taught, trained, and schooled. It is quite another to have high expectations for people to behave morally -- especially in behavior powerfully driven by gonads which have no interest at all in morality. (A stiff dick has no morals.) No amount of education has ever prevented people from sinning in all of the various and sundry ways to which we are prone. No amount of force has ever worked either in this area.
Had we more leisure, more imagination, more energy, more money, more time -- we'd probably get more sinning done. As it is, most of us spend our days working, striving, persevering -- despite the whole thing being a monstrous hoax, possibly.
And, you know, sexual sins are no worse than other sins. Sin is sin--if that is what we are talking about. All we, like sheep, have gone astray. Your particular sin may not be sexual; perhaps it is related to gluttony, greed, jealousy, or sloth -- I don't know, there are various possibilities. It doesn't matter, because sin is sin. Lust as much as larceny.
Not only is sin sin, but we are incapable of not sinning, Left to our own devices, we will sin. I will, you will, he will, she will. Everybody.
So, apparently there is no hope. But WAIT! Here comes the calvary over the hill, just in the nick of time. Why, it's God Himself! At least in Calvinist theology, we are dependent on the action of God (Christ) to redeem us from the sin we are doomed to commit. We can't help it. Without the intervention of Christ, we are totally and irrevocably 100% screwed. On our own strength, we can not "be good".
It is God's problem. If God decides to save X, Y, or Z from the depths of hell, they are in the Good Grace of God. If God does not so choose, nothing, NOTHING, can help them.
This is, see, a nice pessimistic way of looking at morals and behavior. One can lament naughty behavior, but then realize we can't help it. You can't help it either. If you come off as a self-righteous prick, it is original sin at work and you are powerless. If I come off as a sanctimonious liar, that is my doom. I am powerless.
This is the theology I was raised on, and I haven't been able to rid my self of it altogether. On a good day, my compromise is to acknowledge that people behave abominably, which is most unfortunate. But what does one expect from bright apes, if not occasional lapses into appalling chimpanzee behavior.