The implicit argument here is that humanities grads are somehow more likely to "rebel" because they are disaffected due to overproduction of similar deluded or "fake" elites. This is like a 90s deadbeats vs suits style bifurcation and there's no numbers provided to specifically prove "radicalisation" and "rebellion" only amongst humanities grads.

As a result, EOT seems to enter spotlight effect territory where influential socialists who have humanities backgrounds are seen as typical of ALL of that category. A similar logic would relate terrorism to ALL engineers because of something like the Salem hypothesis.