I think a large part of the problem is that, as a society, we've made complaining and criticising a virtue. We've been told "you should question the establishment" but people don't understand what that means. It's as if the establishment is three, slightly drunk, elderly gents, sitting at a big oak table at the top of a flight of marble steps with a big gilded sign saying "THE ESTABLISHMENT" hanging over them, and flinging out proclamations on a whim. Its not. The establishment is the combined hard work of lots of people over time to achieve a collective body of knowledge. And because of how that body of knowledge is achieved, its changing all the time. When (sensible) people say we should question it, what they really mean is we should test, using the same rigorous methods, the conclusions that the establishment currently believes to be accurate. This is how the establishment develops. Unfortunately, what the general public think this means is "blindly attack what you hear, especially if it doesn't fit with what you want to hear" and/or "believe the lone weirdo with no formal training or experience in the matter because what they are saying fits in more with what I want to believe".
What this has led to is a society that has no respect for anyone else's experience or expertise. When you combine this with the lack of resilience in the population and everyone's demand to have exactly what they want, immediately, you get lots and lots of people with no patience.
Therefore, when a football team isn't winning, people are desperate to claim that the owners and the staff are incompetent, simply because they can't cope with the fact that things aren't going their way. They claim that poor results are evidence that the club is run by idiots or misers or conmen. They aren't interested in looking for the more complicated but more accurate answer. All because society has conditioned them in to believing that they should criticise without understanding.
