Why can't I be Toxic to a troll, that is what the Mute feature it for !
Well No the mute is there to stop the escalation of a situation and not a reason to be a Jerk yourself. Just because it is there it is no excuse to behave rudely, And No people who use it are not cry-babies, sensitive kids, or whatever you choice to call them. It is not an excuse for you to be a rude insensitive entitled bully.
You can choice to fight toxic behavior with toxic remarks and it will eventually end badly for you. Or you could choice to be the bigger person and deal with it in a constructive way. Most people get upset and say things because they are having a bad game (or day). By saying nasty things back it only inflames the problem and gives the other person/s an excuse to keep it up.
Other ways to deal with it include but are not limited to:
Ask nicely Once--lets not do this today, no need to talk like that...ect. ( it doesn't always work but seldom hurts )
Divert the angry players such as:
MIA Ash alt down. Garen Tp down for 1:20..My ult up in 30 They are grouping Whatever it is I could go on and on but by putting helpful comments on like this can go a long way to settle things.
You don't have to engage the rager to defend yourself every time !! It doesn't make you like cool or tough or smart..It makes you look toxic. In short, if you have to be Toxic to your teammate for any reason, YOU are toxic..sorry for you, and shame on you.