There isn't a criticism in game, because eight year old Jimmy doesn't realize the toxic nature of it, and the entire game is from his point of view and his understanding. Its worth nothing that every single family member is shown to have at least one major flaw that is simply shown and not commented on. The game trusts the player to recognize what is happening. None of them are shown to be perfect or indicated in any way that we are supposed to agree with them 100% of the time.
Buck's temper is the most obvious example, but Lar's lazy nature and disconnect from reality is consistently shown throughout the game. There's also Jimmy's Mom's ambiguous bipolar disorder, or his dad's intellectual distancing and his inability to both recognize or properly deal with Jimmy's learning disorder. These are all shown as is with no commentary from Jimmy, with the player trusted to put the pieces together. Only Buck ever gets a call out, and not by Jimmy. So its consistent throughout the game.