Other posters have touched on eugenics so let's unpack that a bit shall we?
Humans are evolutionarily wired, for the most part, to reproduce, otherwise the species will die out.
For many reasons we live in a technologically enhanced world based on an economic system that is essentially a pyramid scheme - a minority reap huge rewards from the labour of the many. Yes, it's a simplified view but bear with me.
The system is rigged in many ways to create marginalised sections of society - often certain races, cultures, religions, the disabled, the poor etc bear the brunt of that.
Currently the pursuit of wealth and social stature is regarded as the holy grail of existence but the system does not support that for everyone - by design.
The design means that it appears we are running out of resources, we are killing the planet, we are dooooomed as a species unless we reduce the population.
Obviously most people would find a mass cull unpalatable - the last advocates of that ended up with really bad optics - and those "pragmatists" not opposed to such measures have had to find ways to advance their agenda via the long game. Or, as one might consider it "eugenics by stealth".
It's not that we can't create an equitable, environmentally aware society, it's that some don't want to, because it would require redistribution of wealth and resources, and they enjoy their elite status.
So what to do?
Create division is number one on the list. Do it by as many means possible. Technology gives propaganda and mind control the biggest reach it has ever had. Psychology is better understood and pressing peoples buttons has never been easier.
It's the oldest trick in the book - "People like that shouldn't reproduce".
Of course no-one will point to a particular group that is easily identifiable due to systemically ingrained and historical prejudice. This has to be done fairly.
So one solution is to persuade people, via various propaganda campaigns, to make their own decisions not to reproduce because it is the moral and responsible choice. (Allegedly)
Then peer pressure can be applied. The environmental crisis and crumbling economy is painted as occurring because there are too many people, when actually, before the rapid advance of technology, those people were needed to create an infrastructure allowing that advancement. Now, not so much.
But, I hear you cry, why all the valiant efforts to save everyone during the pandemic? Surely that proves this is a huge, tin foil hat worthy conspiracy theory.
Well, firstly, while lives were undoubtedly saved, it wasn't until it was economically advantageous to do so. The aforementioned minority who revel in wealth and power tripled their assets in a very short time. Many elderly and vulnerable did perish.
The economies and infrastructures of most countries are completely destabilised. Our healthcare system is crumbling. People are dying. People are complaining but the playbook turns it back onto the individual and their responsibility to society, yet society has less and less responsibility to those within it.
Jam tomorrow, carrot and stick, bread and circuses - t'was ever thus but the scale of the manipulation is far greater due to technology.
We are hardwired for survival but we live in a system designed for dependency on it - once it fails we can't all go off grid and grow our own food and be self sufficient, so some will fade away and others will have to compete via whichever means are available - scapegoating those on the ladder rungs below is inevitable.
So a post like yours, OP, is the result of careful manipulation to pit us all against each other and divert attention from the real problem, the bigger picture if you like.
If you want an idea of the way the "elite" think things should be going, look into some of the Silicon Valley higher ups, and their thoughts on having big families themselves because they are intellectually and economically superior and can thereby keep the future population to a desirable standard.
While the gen pop are chasing their tails and pointing fingers at the "feckless" these underlying ideologies are given a re-brand and the carrot that we can all benefit from certain sacrifices in the short term is held out. There is always just enough hope held out to keep us on the virtue treadmill.
So, essentially your "uncomfortable truths" are driven by the worst parts of human nature, and have been planted there in that form to keep us all fighting amongst ourselves and too busy trying to survive to see the bigger picture.
Fortunately it seems from this thread that a good number of people do see the bigger picture...., but as I say, the powers that be are playing a long game. Who knows how it will play out?