“I stood in line the whole day and they gave me a quarter of a kilo”.
That’s the signature line…not “Soylent Green is people”.
Soylent Green: a documentary of the future.
No flying saucers…just broken plastic plates strewn on the roadside.
In our world, there is no (((Exchange))) waiting to report Soylent Green to the World Government …ah, no, the Council of Nations is what it’s called.
Millions overcrowded, rioting masses swept off the streets like refuse, and if a few get squashed…so what? There are so many…
Wait two years to get a hot girl as furniture in an apartment with electricity, fresh fruits and hot water…Only for the well-to-do!
Poor man falls in love and tells the furniture to grind under a new owner instead of suffering in poverty with him…
No star-crossed lovers here - wrong film.
We see Heston more tempted by a hot shower and a big bar of soap than the magnificent furniture. (Hollywood doesn’t cast women like that anymore 
).
Speaking of heat…greenhouse effect in full swing…perpetual summer.
Animals gone.
Trees gone.
Manufacturing sucks…nothing works.
No jobs…UBI?
Water rationed and electricity rationed (got a full line of lead batteries waiting to be recharged…we all got to do our part…jump on that bicycle and ride, grandpa…get that light bulb on).
Life sucks for the common man in this Brave New World but you do get a nice death with privacy, a view and music of your choice. They make death appealing…and life suffering.
No escape, it seems…they say the farms are fortresses…but I suspect the countryside is open with the wealthy living on estates the size of small countries while the humans are penned in the cities.
A whole new food chain is at work.
The well-to-do in the cities see beef (which requires farming and scrub land, since good land is used for crops), and the poor eat each other as Soylent.
So there must be owners in the countryside getting stuff direct from the farms, while a few scraps make their way to the cities.
Another theme: being trapped. Thorn is trapped in his tiny apartment, too small for “furniture”. She suggests the countryside but he says it is all sectioned off. Thus, no hope. He doesn’t even try to get out of the city! (And he would have to be back in two days or lose his job).
You made a point that society likes to keep us needy and apologetic. That comes up in the furniture’s scene with the new owner. She tries to hide her desperation to keep her job, but a little leaks through - lying about her age - her submissiveness, fear, and willingness to go along with the gangbangs on Thursdays.
