My pessimistic take on the world at the moment is that at least 50% of jobs in the US fall into Graeber's BS jobs category. I saw a map a few years ago that labelled the largest employer in each state. In every state except Arkansas (Walmart), the largest employer was a university or a healthcare company. Education and healthcare policies are controversial because everyone wants those things to be as good as possible, but also because a huge majority of Americans are employed in those industries and our governments pump massive amounts of funding into these bureaucratic structures.

We already have UBI, it's just the overblown bureaucracies housed by American corporate structures.