The core assumption of the technocrats is that oligarchs will be able to leverage the planet's population to save themselves as the biosphere collapses
The reason that's a shitty assumption is they've built their entire house of cards on leverage and the one thing under-pinning all of that leverage is sales projections. That's why the pandemic scared the hell out of them: debt and equity are extremely fragile.
The subsistence farmer will outlast them - a Starship will only be good for shelter