Has some form of what we call liberalism today responsible for the downfall of every advanced civilization

thats the nature of duality, has always downfalls

Humanity reaches a certain population density and something kicks in, a kind of intentionally suicidal, hedonistic, end of days switch.

It just flicks.

Like when animals become gay when they become too overpopulated.

Humans take it a step further. Or maybe we simply notice how far they take it because we have to sit at the dinner table with them each night.

this is only the reaction/outcome of this..
i think the word humanity is a wish only
we were just created to match the soul
and to return "home" safely
"home" is the feeling, when you sit under stars and feel, there is your family there somewhere

Okay. I have to ask. Has your life been so without meaning or substance that you have actually begun to believe that the answer is within a god, or an alien, or some nondimensional flying spaghetti monster?

Or do you just use the words as an analogy for something more realistic?

in english language it is like the word: "raw"

Yes, you have no idea how many times