Some League Players Are Unbelievable

The behavior of some players in game honestly baffles me. I get that you might get upset if you're losing, but the people that afk/int because of stupid things or the people that rage in all caps into chat over little mistakes, these people I can't understand. Is it because they feel safe behind the anonymity of their computer screen and think they can just act like total idiots? If so, then how do these people not just feel ashamed of their own behavior. I don't understand how you can act like a complete asshole, anonymous or not, and not think to yourself, "wtf is wrong with me." Do these people actually feel good about themselves when they ruin the gaming experience for the rest of their team? I myself get angry when I play sometimes, but I never translate that anger into chat, I usually just rage to myself. And when I see people raging in game, I usually try to calm everyone down so we can have a chance at winning, but some people are just beyond help. I really don't understand the people who rage at their teams when they're the ones that are playing poorly. I've lost count of the number of times I've had someone throw a bitch fit because they were feeding and the rest of the team was doing well. Are their egos really that big that they have to be the carry, and if they aren't, they just lose their shit? Players like all those mentioned above need to get a reality check. First of all, it's a game, it's supposed to be fun. Second, you're assholes, stop being assholes. Third, by being assholes, you're hurting your own win rate more than anyone else's. Finally, just get over yourselves, you aren't the center of the universe, everyone else is trying to win too (at least in ranked), and don't act like you've never made a mistake or a bad play.