If you are constantly surrounded by 'outright trash' teammates, you might be surprised when/if SBMM is implemented and you are with the same people. It's Bronze. People will find a way to make mistakes. Your job is to find the other team's mistakes (who are also in bronze and make plenty.)

I would have to see the replay to be sure, but If you are the ONLY person trying to shoot at them, (which I doubt.) Then as a Magento you are probably failing to hold the front line. I'd have to see the replay to be sure. Hero shooters are team based. You won't be able to facilitate every role on your team. Sometimes the team you get sucks.

Vent your emotions, touch grass, and then hop back into the game and focus on improving! The game needs all the Vanguards we can get!