>>662426
It's like this: murder is usually, universally, a traumatic and undesirable act. Even in secular dictatorships, killing fields and other atrocities are generally conducted out of the way (even if they are known about). It's…embarrassing, for a people to be in such a state that they feel compelled to do this. You can see fervored defense over certain acts, but you very rarely see anyone say it's good ultimately. Pol Pot for example, despicable Communist he was, openly said he was in error with his actions in Cambodia. The natural impulse is that it's to be avoided as a basic preference, unless the aversion to it is actively trained and burned out.
But sex is a dangerous corrosive. Sexual pleasure is not immediately associated with anything bad, because it feels good and doesn't immediately appear harmful unless its an act of rape or pedophilia. So it is promoted, but things get out of hand. Groups with marginalized fetishes lash out first at those who actively assailed them, then at people who were merely uncomfortable with them but tolerated them, and then later their own allies and protectors. We've seen this with reprobates who go after Christianity for well documented battles in the past, but have since taken to attacking elements that did not find as much fault with them over perceived slights. This causes a moral panic as people try to appease them or redouble their efforts to shut them down, overall a stress on society.
Also, while you have that previous issue, this opens the door for risky activities to be normalized. Not just something confined to a bedroom, but issues that plague society at large. In California, in the article >>662435 posted, you can see the fruits of this as STD incidents skyrocket with the normalization of bugchasing. Many of the bugchasers are purely homosexual, but then you have some that are bi and thus have an opportunity to spread diseases to less adventuresome people that don't know any better, and are also more inclined to take risks (non-monogamous relationships) due to modern sexual mores. That's another stress: more people on medication or sick, and a lower quality of life objectively the whole population as medical systems are taxed harder and the risk of catching a persistent disease skyrockets. And early death as a result, and really, isn't that just the same as murdering someone? You deny them their full God-given span all the same.
I could go on, but I don't want to get too wordy. Despite that, I think at the very least you can say, without even looking at a word of scripture that there's some objective truth to the matter of unfettered sex encouraging behaviors that are at the very least a stressor on a population. And in badly developed areas where an authority can play favorites with a social power imbalance, or a lack of basic medical infrastructure which leads to epidemic, it's no different functionally than an invisible killing field. Which is perhaps why God smited those places; unlike a great many other situations, there was nothing left to save there except some divinely unremarkable buildings.