So, perhaps the answer to your question answers this question -- why have we now found ourselves in this current form of social organization even though we do know how to have alternate forms?

To take it all a bit further, perhaps we ended up where we are because it is the most efficient formula for society we could devise as a species, as horrid as it is.

Perhaps as a species, where we are is the result of following the path of least resistance, given our technological trajectory. In other words, perhaps we formed the various societal models and world institutions that we have because those formulations, taken together and on the whole, have been, at least up until now, the most efficient way to gain productivity and population growth.

But even if that's true, things do appear to be coming to a head. The efficiency seems to be breaking down. Money systems are failing. Social structures are failing. People in developed countries no longer want to have children. And our economic and political divisions could spell catastrophe with even a relatively minor world event, as COVID indicated.