^^Agree that tenure has little/nothing to do with the lack of faculty jobs in humanities and, for that matter, all disciplines. It is a basic econ: supply/demand. There are just too many PhD’s being produced every year to be absorbed. This is no different than the field of law, where we graduate twice the number of lawyers every year that the US needs. (according to Bureau of Labor Statistics).
There is a reason that only 50% of law grads can find a legal job that requires a JD.
The ONLY way to limit the unemployed/underemployed of PhD’s (and JD’s) is to reduce the supply of grads.