@MrMakabar @XTL The main problem is that we need to end Capitalism, and we need to end it NOW, globally, because every possible solution only works if the economy can stagnate or even shrink without causing economic disasters.
A long term stagnating economy and especially a shrinking one would be considered an economic disaster anyway. The key is to avoid social problems due to shrinking the economy. There are plenty of ways of doing that, but propably the most important one is to limit working hours. That means earlier retirment, less hours worked per week and more vacation. All of that are things mandated by countries before. With a globally stagnant population that might very well happen. In fact you see falling working hours in Europe over decades.
The key is to avoid social problems due to shrinking the economy.
The biggest issue is the rhetoric of degrowth economics faces is the idea that a sinking tide lowers all boats. The entire economic industry will come out against it. Even now, economists oppose sustainability because it restricts growth (though they do so without evidence and in opposition to the idea of competition, but who cares about that).