I agree - and might reveal that our diet these days is pretty amazing.
If we don't see a decade of economic downturn, in 1-2 decades McDonald's may turn into something decently healthy/acceptable, once again in the sense of still being fast food.
We could however see the dystopia of McDonald's only accepting fixed amount of meme doge tokens that go on to hyperinflate, and we'll all be able to shake our fists about how we were promised flying cars but got DogeDonalds
This guy thinks the Big Mac should cost $200
It's remarkable indeed. However, this can be the case only because we don't pay for externalities (including high emissions of CO2, barbaric exploitation of animals). This model isn't sustainable.