You don't have to be a gamer to know that there are few more openly toxic people than a cocky preteen boy with an Xbox . It's common knowledge that slurs and abuse are the primary language in your average round of multiplayer Call Of Duty, and the youngest, most impressionable players can be the ones most susceptible to this. However, one viral video has proved that perhaps the times are finally changing. When @buumblebeeduo__ , who is a lesbian, overheard her little brother arguing with his ga…