Should ranked be fun?

So I want to have a discussion with the community bc I think it impacts how we play the game based on what people think about this. I had a game recently where I struggled early and when mid started fussing I asked them to calm down bc it is hard to focus and want to win if the team is raging and the game isn't fun any more. They responded by saying it's ranked and you don't play to have fun, you play bc it's competitive and so shut up and enjoy the free LP when they carry.

That strikes me as a strange perspective, but it's one I've seen from a number of people in discussions on boards. "Ranked isn't about having fun, it's a competitive mode where the only goal is winning." Personally I think this is wrong, but I'm hoping some people who agree with it will start a discussion here and we can go back and forth on the merits of the idea. IMO ranked is a more competitive mode than normals and is where you play what you're comfortable w/ rather than champs you're practicing, or something you're weak on but enjoy playing even though you lose often. However, ranked is still a GAME mode. I play games to have fun. I'm not paid to play test, compete, review, stream, or anything else that would generate income or other benefits besides enjoyment from playing the game.

Where did the idea that enjoyment isn't a core element of ranked come from? Winning should be the goal, but what logic exists to make winning a more important goal than enjoying the game and having fun w/ the people you're playing with? Obviously diamond+ level this starts to become less true because you have people who make a living streaming, coaching, playing, or whatever else I forgot, but below diamond there's almost no one who streams for a living (even in diamond they're mostly former challenger/masters players who are on smurfs or play less serious champs for the viewers) so why is there the belief that ranked should be played if it isn't fun?