Well, I'm always happy to help out absolutely anybody and the best way to get better at the game is to keep playing against other people. Yes, there's a lot of smurfs, most of which are of people who don't professionally play, might I add, and so many of them have the complex that they are automatically better than anybody else. And the quickest way to do what a smurf is supposed to do(get to level 30, go into ranked), is to actually play bot matches on Twisted Treeline. So the smurfs you are playing against are really people trying to make themselves feel good about themselves due to the range of difficulty they are in being a hard time for them regardless.(I understand this isn't always the case, but generally if you wish to try something new out, you should just be trying it out on your account, regardless of the circumstances. Yes, you will have to try it a multitude of times, but eventually you start realizing if it works or not.)
The biggest problem with this talk about jerks and the like, particularly in League of Legends is the fact that in every game, because of how the entire community of Warcraft 3 has been in the original DotA, people would start to get mad at themselves over their failures.
Some of these people had a lack of thick skin, so they would start raging in general and try to find blame where possible to reduce their negative feelings.
Eventually this ends up targeting another person, who may or may not be thick-skinned.
Since so many people do this, eventually all of the pressure and negative tendencies will start getting at the people who are even the most thick-skinned, causing them to erupt and that causes EVEN MORE people to go raging.
The reason this isn't as prevalent in games such as Lineage 2 is that it is not a *strictly* cooperative competition game.
In League of Legends, you MUST work with your team or you will not emerge victorious, regardless of which champion you are playing or even your skill level. That factor of competition will lead to a higher tension, which leaves people more vulnerable to negative tendencies.
TL;DR - Rage is a downward spiral, so try to get rid of your rage before playing