Hence why post-scarcity is the natural death point of capitalism.

Your question is essentially the same as Freudians arguing among themselves about the existence of a death drive: How could it possibly benefit the individual? If it can't in some way benefit the individual, how can it be a drive? How does it mesh with the pleasure principle? The answer is simple: It doesn't benefit the individual. In certain circumstances it benefits the genome, that's why us seed-pods can, in certain circumstances, enter states in which it is pleasurable.

And all-encompassing and all-powerful, indeed, religious, as capitalism may seem right now it, too, is a seed pod. It does not have to will its abolishment to bring about the material conditions abolishing it.

Of course there's also nothing speaking against it not making things unduly nasty for us. But that's mere politics, not fate.