I get why people think that every job but theirs is fake. There's a sense that we sort of intuit that in complex orgs the actual load-bearing positions differ from the org chart (cf. Ed B's post about Peggy and the University). BS jobs flatters the, "only I do real work" impulse.
I get mad about my companies org chart and pay structure not reflecting the actual load bearing positions that is not the same as thinking I am a load bearing position or that managers are useless.
Right. And that's a common Young Person Sentiment. But growing up means realizing you don't have all the answers, and a book like Bullshit Jobs flatters the reader with no, it's fine, you can keep telling yourself you're the only one in your org who does anything.