I feel like these people who watch stuff like Critical Drinker get a respite from feeling uncool and maladapted to society by finally railing against stuff and getting attention for it. They derive pleasure from finding kinship in worthless grievances which prevents them from focusing on better things. They are being robbed of the experience of interacting awkwardly with the general public, learning you are a loser for some understandable reasons and correcting yourself and having more productive fixations.