why are people so smug when they are winning....

Just played a game that my entire team fed so hard. I died 6 times (had 10 assists of our 15 team kills) but they had maybe 50 kills total. Their team decided that my whole team was so bad. I said can't carry this. And then said you deserve to be here if you can't carry. Apparently because I can't carry against a 20-1 voli, and a 15-1 draven... (i was who killed both of them) Like I'm sorry, but that was my teams fault. Yeah maybe you shouldn't blame your team, but I literally couldn't do much with their fed team... When bot lane and top lane both have died 5 times each in the first 10 minutes, and you are anivia (slow as balls) what are you supposed to do...