That's a very false narrative in general, but especially so on this board in particular where every single player gets shit on a lot. Larussa himself has admitted to some of his most egregious, mind-boggling errors. Is there some nit-picking? Of course. This is soxtalk, after all. But some of his managerial decisions have gotten so bad that they've merited local and national media scrutiny.
What's really not fair is what the fanbase has had to endure for as long as reinsdorf owns the team. This organization will never be in any position to waste away championship-caliber seasons for as long is reinsdorf is alive, so of course the fanbase has reason to be upset when reinsdorf makes a selfish hire against the good of the team. When reinsdorf hires a manager with the most potential to backfire and derail this team, then yeah, there is gonna be some extra scrutiny, most merited, some not.