I don't think he's hooked on drugs the way that people are inferring, I think it's that he fell down a rabbit hole that a lot of weed smokers fall into:
Conspiracy theories
Weed culture
"Tripping" off of other stuff (shrooms, DMT etc.)
It's like he started smoking weed late in life (I have no evidence of this or nor am I implying it), but he became one of those "Have you ever tried weed maaaaan?!" cats and is all about it and the culture around it in a way that's dulled his music, content, and character.
Before/around Control System look back at his catalogue and the references to this kinda stuff wasn't there, then all of a sudden between Control System and These Days he became a paranoid weed-head:
Bohemian Grove
Terrorist Threats
Pineal Gland
Illuminate
Tree of Life
Dub Sac
Twact
Sapoisexual
He went from a "Regular nikka" to rap Doug Benson/Joe Rogan.
Before any of them had official albums Ab was actually my fav member of TDE. Maybe not the best rapper of the bunch, but I enjoyed his music more, now I'm not looking forward to what's next if it's anything like These Days in content or sound-wise.