The last sentence in that quote gives away the game. The hypothesis—the one I’m saying is not supported by any evidence, and which has been falsified in the past—is that you can do degrowth without the downsides. The concrete proposals are to stop doing the things that increase economic growth. For example, they are opposed to mining more minerals, regardless of environmental damage, because they want less resource usage. Less isn’t more.
You say their point is worthy of discussion. Which point? That there are finite limits? No, it’s not worth discussing. Yes, there are limits to growth, but they aren’t relevant. They are busy telling people energy is finite, so we should use less—ignoring the fact that energy can be plentiful with solar and other renewable sources.
These are the same people—literally the same, in some cases—as the “limits to growth” folks from decades ago, and the fact that they were wrong hasn’t deterred them in the least. They are STILL telling people that we will run out of minerals, ignoring the fact that discoverable reserves are orders of magnitude larger than we need in the foreseeable future, and in most cases reserves have been getting larger over time.
But sure, you can tell me I haven’t engaged with this, and that it needs more thought. I’m even happy to give it more thought—I just need you, or someone else, to point to what you think we should consider that isn’t either philosophy about finitude ungrounded in any facts, or that is flat out wrong, instead of saying “consider this general area,” one which I’m broadly familiar with already.
I’m explaining why people haven’t engaged with this—the specifics are missing, or have little to do with degrowth, or are wrong. You can cite the study “justifying” limits to growth, (which I’ve discussed on this forum before!) but they said that there would be a collapse decades ago, so it’s hard to take that seriously.
I’m sure there is a steelmanned version of this that deserves some credit, and I initially said that there are some ideas from that movement that deserve credit—but I don’t understand what it has to do with the degrowth movement, which is pretty explicit about what it wants and aims for.