It's not as outlandish as you're attempting to paint it as, considering the author is assuming that capital interests remain in control when making such a claim.
And under that assumption, it's a bit crazy to think anything but depopulation will happen. Everything points to it being in their playbook; the blatant mishandling of COVID (which is far from over) by the uniparty being one of many glaring examples.
I agree depopulation will happen by simple resource limitations but I do not think it is any part of a playbook. Hanlons razer : Never attribute to malice that which is adequately explained by stupidity.
Many wish there was at least malice because then there is a narrative, the reality is probably much more muddled and messy.