The only problem is we don't know what remnants we will have left when we finally find a good alternative, and that good alternative may turn out to be terrible in the long run.

In reality, I think that the main problem is that we've allowed capitalism to get to its later stages, and that we should've switched to an alternative long ago while it was still in its middle stages. Any way of life has problems, and the only thing that happens as it evolves is that those problems fester under the surface, eventually killing off most of the progress made because of it.