Staying friendly during hopeless games with toxic assholes

Is there a psychiatrist in the room? Its quite annoying to go 6/0 and take both your lane towers before 18 min and still lose. You know, Those games where you know there's shit you can do to save your team. And you have to sit there and watch top lane dive under tower into a 2v1.... "Hey Ryze buddy, just try farming, wait for jg to help you." "Fuck you," comes the response "You're not doing shit for the other lanes." ... Then he says two are down lets do baron (at lvl 11). Of course I say no play safe nows not the time etc etc, the 4 of them do it anyway, get it down to about 3/4 health then get dived by the entire other team. "FUCK you jhin, if you'd been there we could of done it." Then they agreed to surrender 4-1 and I bet I got reported.... I cant emotionally handle it. Is there a psychiatrist in the room?