What is your prediction for what will become of it, though. GDP growth stops and people start bursting into flames? You know we’ve actually observed this before, right?

Now, if you do mean “capitalism” not in the plain definition of “an economy based around private ownership”, but the more specific version where control of capital is highly centralized - there’s some truth to the idea that economic decline can cause people to start looking to reform that system. True of any system, really, because people generally don’t want to see their quality of life decrease. But that’s very different than an economic system “requiring” it to function.