You shouldn't be able to join a competitive pvp match or start a raid without a working microphone
In games like Destiny or CS:GO for example, you should not even be allowed to start the activity without a working microphone. I dont care if you are antisocial, if that's the case, those activaties aren't for you and you shouldn't bring down your entire team because of that.
As an clarification, I'm more worried about Raids than PVP
THIS a thousand times. World of Warcraft became dead to me when it implemented voice chat in the game's client. I can't hear well enough for voice chat and while I can speak just fine, I refuse to buy peripherals so that the hearies can feel superior with their lack of environmental awareness.
I played with a person for months in overwatch before I heard their voice. It was because she enjoyed playing with my friends and I and was afraid that we would get all weird when we learned her gender. Thankfully my friends and I aren't dickheads so it all worked out. We continue to play games to this day even, just not overwatch because it sucks and fuck blizzard.