This is a tsunami comprised of a 4 head monster: Italian system + a president throwing club's identity to the trash (Agnelli) + fraudulent/incompetent sportive management (Paratici & co) + football jihadist (Allegri). System took advantage of the 03 internal aspects, all happening at the same time, and released the fatal punch.
Let's see what else will be left when this institutional earthquake ends (i.e., also when Allegri finally leaves). Actually I've never seen something like this, considering it's the biggest club in a premium football country.
Only irrational people would continue to follow with this obsession or "passion" for Juventus. Watching games has been madness for like 3 years now. The entertainment part of it is completely erradicated by Allegri (Juve DNA).
I'm sure we have already seen a sizeable reduction of the club's following, and with it's tainted image, it should persist in the future. Club will probably never be as big as it once was.
Unfortunate as fuck. Hope will only surface again when Allegri is finally gone. But signing guys like Pogba, Lukaku, and selling the few talent they have on behalf of a bad relationship with a dinossaur coach will only extend this disaster and dig a deeper hole, from which the club may never fully get out again.