Check out this interesting interview with Phil Spencer about toxicity in gaming:
Of special note:
"Xbox Live is not a free speech platform. It is not a place where anybody can come and say anything. And ... we’re working to ensure it’s a safe and inclusive environment for everybody..."
So if you find yourself being exposed to a "toxic stew of hate speech, bigotry and misogyny" while being spawn killed or waiting for your Arena match to start, be sure to use the tools available to you to report them both to Rare and Microsoft.
Help make this community "a safe and inclusive environment for everybody."