Random Attitude Problems

Even whenever I play well, more often times than not, someone will tell me I'm trash, I play bad, I'm a baddie, or a synonym of those. I just played such a good game with Leona that it astounded me. I didn't aim for an S, but I wanted one. I aimed to get our carries fed, and that's what I did. What was it, 1/4/23? I think that's pretty good for a guy who tends to avoid playing ranked due to having tanked my elo down to nothing during seasons 1-5 as a method of learning other champions through ranked. I haven't and will not make another account just to prove to me or anyone else that I play above a Bronze V level. I know I do and it's reflected in my actions, but I haven't been nor will I vehemently grind to Silver+. I'm just not interested. But I digress. What is the deal with people intrinsically angry when they queue up? Why is everyone so mad when nobody even provoked them? Is the entire NA on a constant state of tilt?