Does the high risk champions makes people toxic?

Hey guys, as many of us already know we have a lot of high risk champions in league. I used to main one of them from s5 to s8 which is Riven. Back then i was getting super angry when i get outplayed or my spell had 0.1 cd and i knew if it was up i could get double or triple. The thing is i never flamed in chat or anything but i used to punch stuff in my room. I quit playing in s8 for good cuz i realised if i dont stop my anger problems will grow. I came back 1 month before s9 to end and i start maining support and mostly Yuumi, actually im feeling so calm when im playing yuumi and other supports. Yesterday i decided to switch back to Riven and see if i still can do it. and oh man... I had few decend games i wasnt angry cuz everythign went smooth. BUT My last game with riven and probably is gonna be my last forever. Toplane and Jungle dived on my turret and i failed Flash E W combo , i could killed them both. I WAS SUPER MAD , on top of that my jungle start spam ping me and said "great another idiot at toplane" ... oh man , i went on that guy like i forgot the mute button exist , i was so so so so mad at him , i thought i will get chat restriction. But i didnt which is interesting xD i probably would skip the 14 days ban and go straight up to pernament ban anyway thats not the point. So after this game , i really think the high risk champions are standign behind the toxic people that maining them. Because after that i went back to yuumi and even tho i was super toxic last game , i was super happy and chill at the next game , my team did some stupid stuff but i didnt care much , i tried to encourage them with good words and funny emotes etc... we end up winning the game cuz i boosted the morale.

What do you guys think ? Does the High risk champions make people toxic?