There's a degree of truth in all this, but if you think a public campaign against the board by the manager is going to A. change Levy's behavior, B. oust ENIC from ownership, or C. maximize our chances of winning games, you just weren't paying attention during the Conte era (or the Poch era for that matter).
Levy Out is the fans job, it's our job. The manager's job is to coach the team. That Ange does that without the customary woe-is-me trail of complaints about the referees, the media, the board, his players, and so on and so forth has always seemed sensible and endearing to me.
If I believed a manager cunting off Levy in the little Sky postmatch interview corner would cause him to sell or spend more I'd be demanding that too, but I don't see how anyone can really believe that anymore.