Riot, I need help

Riot, in the past, I have loved your game to death. I've played it extensively, researched it extensively (Did you know that Irelia has only actually been nerfed five times?), and thought a lot about it in my off time. I've sat here and played through it, even when you guys were doing some very questionable things by the viewpoint of the community. But I've trusted you all, and it's all paid out in the end.

My issue today is about ranked. Ranked has always scared me due to the competitive scene. There are still champions I don't trust myself to play in ranked (Like Bard, I never know what mood I'm going to get into with all those penguins O.o), but I figured I would give it a try. And it was enjoyable! I love support, being able to hear the praise I get as I save someone's life by jumping to them with a shield as Braum or landing that epic fight-winning hook on the enemy Katarina, I really enjoy that. I enjoy watching my ADC grow throughout the match until they're a force to be reckoned with! That's really fun. And that continued, even more than in normals! People loved it when I do my job better than they expected, turning the tide of a fight by scattering the squishies with a Janna ult or getting the polymorph we need off on the enemy Yasuo. Before my ranked games, I was primarily playing against silvers and occasionally a gold or two. And then I finished my placements. Going 7 wins to 3 losses, I got:

Bronze III.

._.

So I figured, whatever, I'll just play through it, climb out so they say. And then I played my first game after getting placed in bronze 3. Oh lord ._.

Game #1: AFK Teemo. That's fine. Game #2: Orianna dies once at 23 minutes. Goes afk. Game #3: We win. But Illaoi and Jhin were having a shouting match the entire game with our team about how terrible we were doing (even though we won O.o).

And then it just continues. My carries at this point are just blatantly rude. If I don't manage to do that epic Braum save, they yell at me for the rest of the game. Or they just play the blame game with one another. Personally, I'd never seen the blame game before, it was the stuff of legend for me. Now it's in just about every game. And it is coming to a point where I am becoming a generally unhappier person for it, because it happens whether I'm in ranked or not. Even in ARAM, people yell at each other. I just want to be able to have people who actually play the game for fun rather than to yell at each other. At this point, I'm quite tempted to quit League of Legends altogether, because the game is just completely anti-fun now. I'm not even allowed to try new champions anymore, because people rage the moment I die even once. If I tell them I'm trying out Syndra for the first time, I get met with, "Oh fucking great, why the shit does rito match me with such fucking noobs, I swear to fucking god if I could just climb out of bronze, I wouldn't have to deal with these stupid fucking %%%%s". Yup. I got called a %%%% for trying Syndra for the first time. And I'm sitting here wondering why he's playing a normal if he's trying to climb out ._.

Anyway, just wanted to see if anyone had any advice. I only have one real group of people I play with, so getting into a full premade five is quite rare. I just honestly don't know what to do anymore. I'm about to quit League because people are just blatantly rude. And it's all because I did my placements. My average mmr dropped a solid division because I WON a game. Season IV, I did 6/4 in my placements and got Silver III. Dunno what to do, game is unfun, pls help.

P.S.: Don't know exactly where a post like this goes, but I'm putting it here because it's about playing the game. If it's in the wrong place, could a Riot employee move it or something?

P.S.S.: Gameplay etiquette says to mention our lord and savior as much as possible, you Teemo worshipers.