Assuming, arguendo, that the argument is right so far as it goes:
“Worked” in what sense?
No one disputes that with enough borrowing–that is, transferring wealth from the future to the present–one can jolt current consumption. Is this rocket science?
Is there ever a point at which these people conclude that it’s immoral to pile more debt on posterity so that we can benefit today? (NB: rhetorical question)