Things of course will need to change. The question is whether the change will be abrupt and catastrophic ("collapse") or not.

The OP offers as a solution supply constraints raising prices, thereby spurring human ingenuity to come up with alternatives that aren't so heavily constrained.

You seem to have answered so reflexively and simplistically as to have been pre-refuted by the OP! Maybe you want to read the message and make some sort of sensible argument against his points if you still disagree?