I mean we’re seeing it in the USA already don’t we (as one of the more capitalistic examples)? Capitalism is still pretty stable, a lot of are mentally ill (otherwise I can’t explain why someone like Trump is so popular). (And physically too). Opiate crisis. Richest country, yet the poorest are living in similar conditions as those in the poorer countries in Africa. I can name more examples of society falling apart, but yet capitalism still being strong (even in the democratic party). I mean I agree with your points (which are undermined by mine), yet that doesn’t mean that capitalism is falling apart - and that means IMO that a major part of the people agree (and especially those with power, be it financial/political or military), that the system is is inherently flawed, and needs to be changed. But exactly that is something I’m not seeing anytime soon.
Interesting theory, need to think about that. Though I don’t think Fascism and Capitalism are necessarily exclusive. (As example China, which is I’d say fascist and against the usual theory of “communism” quite state-capitalistic)
Because the trend is clearly not to zero currently, there’s a lot of rich people (and the number is growing), profit is still growing, it’s just that the gap between poor and rich is also growing. But Capitalism doesn’t care about a lot of poor people. How that will be long-term is another story (as said ecosystems are the limiting factor).