For something related that takes a very different approach: https://causegraph.github.io/causalaxies

In contrast to the author's decisions here, I decided to

-go for an "everything tree" even if that will contain many more errors

-use DBpedia/Wikidata, and address issues discovered by editing Wikipedia/Wikidata

-use a 3D visualization tool, due to the size of the graph

I think it reveals an interesting overall structure, and some interesting details for those who zoom in despite the issues with the data.