Is it true that when a culture is about to reach the end of its useful life, it gets attracted by overeating, trashy language and excrements?

Nowhere this is more visible than in the good ole US of A where overweight people are starting to be the majority and the number of times people use trashy language in their daily lives is alarmigly high.

Your clip somehow reminds me of a 70's movie by Marco Ferreri called 'La Grande Bouffe'.

Ferreri's movie was a lot more elaborate and complex than your clip. It revolves around the idea that overexaggerated consumerism ultimately leads you into trash and death. At least that is what I gathered from it.

You shouldn't conclude from my comments that I am equalling you to Ferreri. You're no match to him, at least not yet, but you're on a good start.