If human populations flowed with people more naturally, people would treat one another BETTER.
Permanent dulling of sensation? Plastic condoms last long and have no allergic reaction potential. Preventing the horrors of a child is hardly trivial yes indead, that is the goal not the side effect, that is the primary affect.
Everything is going to have a side effects if you look hard enough, even drinking water. Point is you got to weigh the desired affect with the chances of undesired side effects. For example many women are aware of the chance of high blood pressure, strock and heart attack while taking the progesteron-estrogen pill, yet the risk of a child overrides and they take it anyways.
If human society flowed naturally people would be reduced to tribilism were population growth in naturally controlled by people killing each other, where we all live rough painful and short lives, such is the natural way. For us to all live happy, luxurious, long lives we need to control population though more advanced means, such empowerment of women, birth control, and family planning.
I'm not talking about minor or imaginary side-effects, but the rather noticable ones, of experimental shoddy contraceptives. People deliberately downplay those, due to some bizarre obsession with "reproductive rights." And yet some have made the news, and certain contraceptives had to be banned, due to liability, lawsuits and such. Which ones? IUDs maybe? Even "the pill" has been reduced in homonal dosage?
Human society did flow more naturally with people, for most all of history, until very recently, and throughout much of the world, it's been very beneficial, helping much to build civilization, dominate the land and have it be ruled less by dangerous animals, and to get electricity and other modern standards more widely spread throughout the world.
Supposedly high population density let to violence in Rwanda. Not so, and according to some TV program I watch, there is much reconcilation now in Rwanda. They don't speak of their separate tribes anymore, but as they are all much the same. And still they are dense and continuing to grow.
No, I don't believe the Malthusian gloom-and-doom. Tribalism occurs where populations really haven't grown so much, because as humanity more "flows" with people, families and tribes would more quickly "merge" and grow together, and some distinctions would fade, or spread culturally among various peoples and not just through family and tribe. I am much against corporate-dominated political-power-mad forms of "globalism," but I much welcome the natural "globalism" of the nations naturally populating themselves into each other, towards somewhat some possible form of global population arcology. Cities now are a mild form of population arcology, designed actually to more comfortable and safely hold huge numbers of people within a somewhat confined space.
Also, people haven't very well thought things through. As people have babies, the numbers of women of childbearing age may naturally rise just a short generation later, which doesn't bode towards population "control" but rather natural population growth. Why resist what must be? As there gets to be all the more birth canal holes populating denser, from which babies may emerge, we should be more pronatalist, encourage people to pair up and marry and reproduce, so that we might more readily ADAPT to our natural increase, for the greater good of the many.
In the poorer developing countries, which are becoming more wealthy and advanced BTW, where people are more pronatalist, mothers openly breastfeed in public. I think that should be allowed of course, because it's pro-life, they say breastfeeding is best, and as there perhaps gets to be so many people around, people in most every room, there's not always some nursing mothers room everywhere, like they have in some Churches where there's always a lot of babies around. People eat in public, and society should be deliberately more fond of people having their precious darling babies, even if in some respects, it does seem to be getting a bit "crowded."