The problem lies with the species. The current issue is part of a pattern that has been with us for thousands of years, it becomes apparent only when our ability to throw our waste willy-nilly wherever finally reaches the point that we must move on because we can't deal with the cleanup. We have thrown our garbage into rivers and lakes relying on our ability to blind ourselves to its effects because we can't see it, therefore it's not there. It has left us with many water resources that are unuseable because of the long-lasting effects of pollution. It has now reached the point that even the oceans are incapable of dealing with the problem.
So the issue with space garbage is nothing new. Consider the the amount of detritus that we have created in the long history of ocean exploration here. We just left it there, rather than clean it up.
There really are very few possibilities of solution to the problem. Historically we have simple moved when our garbage has reached the point of making our immediate environment untenable. Else, we must make a serious change to a base attitude of our species.
Oh, and rely on our governments and commercial institutions to clean up the mess? Don't make me laugh.