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.
I don’t think that would change much. You can have a thousand working microphones plugged into your computer but if you choose not to talk then it won’t make a difference. Those who want to communicate with voice will make sure they have a mic, and those who don’t want to won’t speak.