Well. If one takes the term “other peoples’ money” to its logical extreme, you can never run out of “slavery,” because that is exactly what it boils down to.
Others peoples’ money really only runs out when the oppressors eventually stupidly kill the oppressed.
What is more likely to occur is the “people” running out of “their own” money due to bad central planning.
Isn't your personal money from the "other people's" money pool?