You’re right, disability SS has become a joke and action has got to be taken to limit it to the truly disabled.
My ex son-in-law went on SSDI at age 27 with a "bad back", he's 45 now and still sucking it in, all the while still working and getting paid "under the table".
Yes, I reported him, years ago to both the IRS and S.S. The IRS because he doesn't pay taxes on his "under the table" income. I gave details too, where he worked, his hours etc.......................... Nothing happened.
I'd bet that most people on this forum knows somebody like him.