people blame shift way too damn much in this game

So I had a game as Sona mid because it's fun to play with underdog champs. And after a while, probably 15 minutes or so into the game, I comment how the enemy Jungler, Vi, is really ripping our lanes a new one (and at that point I had only died once, i think). The literal first response is "your so badd sona" from top (who was doing mediocre anyway)

so at this point, I'm already like 'are you serious' and then the jungler, who absolutely did NOT help my lane at all in any shape or form, follows up with 'dude sona you suck'

Zero common sense, I swear. I totally admit that I could have done better, but it's so ridiculous to see people not take ANY responsibility for a loss and throw the blame on the person they left in the dirt to die. Not to mention, it helps zero to be negative or demeaning to teammates when you're losing. How the hell does that help? You're an idiot if you do shit like that. Learn some god damn manners.