People screaming racial slurs in online lobbies isn't 'kids being kids' and it still happens way too frequently. When I was a teenager I would have been glad if there was technology to filter the most toxic people out of online gaming. Many girls I grew up around who were into games deliberately never used voice chat because of the stuff that immediately would be spammed.
Even though you sit at home, online gaming usually involves strangers, and that means you're in a public space. You can't actually go to a chess club and start throwing slurs around or behave like a lunatic, so you shouldn't in the online world.