How do you deal with toxic people in your games?

I always go into my games with the mindset that as long as I learn something that will help me improve, it counts as a win. In my last match, right off the bat, my support was arguing with my jungler (I was adc). The jungler kept trying to solo dragon, and the support got angry so he was telling the other team whenever the jungler would be at dragon. I assumed this game was a loss, so I just tried to not die and practice my last hitting. I muted both of the people arguing and continued to try my best, eventually picking up a quadra kill and making a fantastic comeback before finally losing. No worries, I got to practice my cs, and I learned how to kite better. In the post game lobby, naturally the 2 toxic players had to continue to be toxic, with my support telling me that if I didn't spend so much mana in lane we could have won the game, and that I never had enough mana to fight (which isn't true anyways, I always had more than enough mana to fight). He kept calling me names and telling me how bad I was, even though I thought I performed really well. It's hard for me to want to queue again after that. I try to stay strong minded and not let those type of players bother me, but it's so hard for me. What do you personally due to deal with people like that?

Tl;dr: Just had a game with a couple toxic players, tried my best to win, did well, still got called names. How do you mentally deal with people like that?