You know what's just as annoying as a toxic ally?
A toxic enemy. You know the ones. You/your team is having a bad game. You're getting thrashed. To top it off? The enemy taunts you in /all chat, saying things like " ez", " lol enjoy staying in -insert rank here-", " wow, you're bad. I feel bad for your team LOL", etc etc.
Unprovoked, of course. Why do people gotta be so toxic? Rip.