4) Since the elite (big banks, ultra-rich family empires etc) already has most of the money, isn't the issue for them to have more control? - YES.
5) Are there are "too many" billions of people standing in their way of having more total control of everything? - YES.
6) Regardless of whatever we think about eugenics, is it a known fact that these elites do discuss mass population control? - YES.
4) You don't understand what money is. It's a commodity that allows you to purchase time and assets. No people = no time. No creation. No production. No growth. Game over. Unless you think the "elite" have armies of robots?
5) Control of what? So the people are gone. What do they control? Trees, mountains, oceans.. Wonderful, yes. That sounds amazing.
6) Yes, because the world is overpopulated. Population control is needed.
You suffer from paranoia. You believe yourself to be rational, intelligent and 'awake' while the rest of us are stupid and asleep. The reality is that you're confused and brainwashed and lack an understanding of psychology, economics, power and ultimately the nature of this universe.
The reality is this. Those who you call elites are normal people. A handful of them get super rich and just love making money, so they keep building and growing. Ie, Donald Trump. Another group made vast amounts of money and realized there was more to the world than just wealth. They use their wealth to benefit the world in ways they see fit. Ie, Richard Branson and Bill Gates.
Then there are others who made vast amounts of wealth and realized some even deeper truths about reality and prefer to live a life away from the public eye.
There are a few bad apples out there, but not that many. Look at the world. Look at your reality.
You can log onto a forum and learn how to get RICH. If this world was as bad as you say, and under the control of evil elites who want you dead, then you wouldn't be able to make billions yourself. You can make billions. You can BE one of those elite. It's not an exclusive club. This is a world of education, opportunity and freedom and it gets better and better each decade.
So please, put down the bong and come and join us in making vast sums of money. The elite welcome you.