One word.  Greed.

WALGREENS, in particular.

https://www.americanthinker.com/articles/2024/01/why_are_thousands_of_pharmacies_closing.html

And don't think programs like medicare and medicaid are gonna be any help, just like my Humana Rx plan is of less than no help.  You need PRIVATE insurance carriers, not these huge mega-donor liberal backed companies.  You see, that's where the greed comes in.