Calling People "Try Hards" after losing?

I just finished an ARAM game. We lost, the other team had a lot of CC and Veigar one shotting people XD. But that's how it goes sometimes in ARAM, get over it. Two players on my team started being toxic to the other team, calling them "try hards." What is the logic? To those of you on the boards who do the same thing. You get beat, so your insult is the other team is try harding? They must be losers, they are trying to win the game. I don't get it... Is that an actual insult that is supposed to bother a winner?
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