I started playing preseason six. Can confirm as this shits still ingrained in my brain. I probably wouldn't have kept playing if not sheer stubbornness and the fact that I was playing in the first place because of my now wife (which is the only reason I continue to play at all).
The toxicity isn't what bugged me. It's the absolutely rediculous non existent matchmaker for normal games. I remember having like 30 games expirience, getting my ass handed too me, only to see my lane opponent was playing his role and lane main with over two thousand winsin the post game lobby (back when you could see that shit, funny how it's hidden now). So best case scenario he's a God player and has a 66% winrate, that's still three thousand games of expirience literal thousands of hours and years of game knowledge, vs somebody who's played the game for a few weeks.
This wasn't exclusive to that's one game, it's the most erroneous example and remember it best because I had a chat with the fellow (I was bitching about the Matchmaker) and he told me if I didn't like it to play blind pick because worse/newer people play blind. To which my response was "oh okay, so I have to play an shitty game mode if I want to avoid a shitty matchmaking system". Makes alot of sense, right?
Frequently I'd find myself up against people with several hundred wins, a lot up above 500. I got them on my team too, but that's equally as bad of an expirience. Games are so fun when someone goes 30/0 on either team and just blasts down a lane and ends it in 15 minutes when le you have no idea what's going on or what you're supposed to be doing, right?
After almost three years of playing though, I can say without a doubt that my first impressions where absolutely correct. The matchmaker is still shit. You can either play ranked and bathe in the wonderful glorious toxicity that it brings with it, people litteraly trying to just ruin other people's day, for the sake of 'fair' games. Or you can play norms and deal with wildly swinging teammates wondering why you got absolutely shit stomped only to find out your bronze ass was laning against a diamond or platinum on thier main warming up for ranked.
So I play ARAM, maybe once a week with my wife, when she finally pouts enough to get me to play.
It's not that I don't like a coin flip, let the fates decide, see where the cards fall, some other cliche about chance, but if I do want to gamble, I'll go gambling, I don't want it in my games.
Theres a millions variables why league could and will eventually die. This is certainly one, but with Tencent acquiring larger and larger stakes in PUBG and Fornite, that's what will kill league. Tencent has always and will always continue to milk what's good, and jump on what's hott. It's thier entire business model, they've made billions by doing nothing other than buying shit up when it's becoming a sensation and on the rise. League is in the milking phase, it's plateaued. The company has its attention elsewhere. If ya'll really want to save league then stop playing other Tencent games. You're just paying the same company through another avenue, and fortifying the idea that they should move on from League and focus thier capital sledgehammer in a different direction.