I agree in making them obsolete but I think the above is "just" great life advice and not necessarily something that will stop capitalism. Just to be clear, I love it.

Capitalism can absorb anything you throw at it. Shoot anti capitalism at it and it will just sell you rage against the machine albums and anonymous masks. Theres no reason to suspect the above won't just result in the further comodification of care and affection.

So, what do you feed an insatiable monster who can absorb anything you throw at it and grow stronger from it?

As little as possible.

What does capitalism actually feed on

Human labour.

The answer always has been and always will be the strategic refusal of labour, over and above what we need to live a reasonable life.