Why is the job market trash right now?

Like I have been searching and searching for a job for almost over 3 months now with no such luck at all.

I just applied for 3 librarian jobs and I'm hoping I at least get an interview with one of them. I know with one of the jobs people have quit and I have fair chance of getting an interview because I know the person that works at the institution has put in a good word for me but they are taking forever to call me for an interview making me worried.

I don't know. I'm just really tired of this job search and ready to work full-time again.
Why is the job market trash right now?
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