Flex queue is not just ranked with extra teammates
In flex if you aren't optimizing your entire team then why are you wasting your time?
In flex, everything is fair, unlike soloqueue. And that's why you will not climb as high as you'd like until you either get lucky enough to hit your low standards like gold or plat. Due to the nature of flex queue, if you aren't part of the top 10% then you just are not competitive. This is part of why some people like soloqueue.
Don't go into flex trying to see if you can reach a new level, diamond doesnt mean shit in flex. You either climb Olympus and ascend or you die with the other mortals who will be forgotten to history in time.
Flex queue isnt ranked, its the no-holds-barred gladiator arena of death. If all you want is to reach gold or even masters then go away, you aren't ambitious enough for flex queue. Though that's also part of why its impractical in a sense. Much of this community is like what, 13-18? They don't even know what ambition really means.
Soloqueue is like highschool wrestling
https://www.nfhs.org/media/1016967/kj9g0686.jpg?width=500&height=333.33333333333337
You do your thing and if you win you're a local hero cuz yippee! You got yerself a little prize! I'm sure highschool girls will be very impressed!
Flex queue is like a fight to the death
https://brobible.files.wordpress.com/2014/06/mortal-kombat-parodie.jpg?quality=90
this is not a damn game, you are out to end fakers career!.. if you're good enough (you probably aren't) You're out to destroy cloud 9 (if they still exist). This is serious business.
You want to know why you get trolls on your team in flex queue? BECAUSE YOU PRESSED PLAY WITHOUT BEING PREPARED WITH A FULL TEAM OF PEOPLE YOU KNOW AND TRUST TO DO THEIR DAMN JOBS. Its your own fault, you have every opportunity to train and train with your team in any way you see fit. You can pick them yourself, there is no excuse here, this isnt soloqueue where you can pass the blame.
Maybe league is supposed to be a game but Flex Queue is not a damn game!
When you are winning at soloqueue you know because you get an internet sticker named after some precious stone or gem When you are winning (finally) at Flex Queue there are high level players whispering your name and trembling in fear because they can't feed their families if they lose!
For better or worse, welcome to the reality of E-sports