I have it a bit easier (it was pretty easy for me to walk away) because my disgust for what League has become started like two and a half years ago. I wasn't nearly at the level of "disgusted" back then, but there were times where I would read the patch notes just to think: Wait...what the fuck did I just read? Are you kidding me Riot?? Suggestions at the bottom if you don't want to wade through the lake of salt.
I watched their favoritism for champions like Lee and Zed warp the meta to the way they want it - to appeal to spectators.
I watched those spectators scream when flashy plays happened, prompting Riot to invest resources into making mobility-creeped monstrosities.
I watched Thresh and Yasuo be released who indirectly set the standard for new champs and reworks to be overloaded to Hell and back for the sake of being unique, fun to play, and fun to watch, all at the expense of the old standard of champions.
I watched the season 4 jungle chances where most struggled to clear, (except Lee Sin - God forbid he'd have problems) and off-meta picks got the hell beat out of them for having the audacity to show their face where they aren't welcome. This shouldn't have been as surprising as it was to Riot.
I watched mobility metastasize with the reassurance that "Mobility creep is definitely on our radar"....then came Kalista. At first when I saw the reveal on S@20, I honestly thought it was a sick joke. When I saw CertainlyT was the designer, my heart sank realizing this was a real thing, and that he's going to introduce another tumor to the roster.
I watched Ekko, who took the form of an un-killable, un-kiteable, un-bearable "assassin" who also happened to have 3 slows - one of which was from a 3 hit passive which chunked you AND gave him a speedup, an AoE stun, percent execute damage, a dash blink combo, and an Oops button that gave an AoE AP nuke and HEALED HIM. All the while, his mana costs let him spam relentlessly, because as we've seen this season, having cooldowns are apparently anti-fun.
I watched the healthiest and most balanced state League had ever been in during the middle of Season 5 disappear with the Juggernaut catastrophe, which wasn't dealt with because it wouldn't be fair to the pros for drastic changes to happen so close to Worlds. If anyone reading this happened to be involved with the decision to hold off, seriously, fuck yourself.
I watched Preseason 6 and all of its cancerous changes pollute and corrupt everything that made this game fun to play after we screamed bloody murder that everything was broken, unhealthy, Yasuo and Trynd were going to be out of control from your bullshit Keystones, Graves was walking over everyone, Soraka was even worse to deal with, ADC's were in every lane not because people wanted to test them, but because it was the most optimal way to play...etc. And Riot did nothing except steamroll ahead with it.
I watched Kench and Kindred released. Why? Why would you allow these champions to exist? Did you hear our complaints that having both teams line up mid and vaporize each other in 2 seconds and think "Welp, I guess dying is anti-fun lawl, here ya go!" not even mentioning unnecessary passives included. And then there's Jhin with his book report essay for a passive which lets him outplay people with a 1400 damage right-click late game. But I guess he's unique right? Mission accomplished?
I watched this Dynamic Queue shitshow knowing full-well after so long of being lied to and disappointed that they had no intention of bringing Solo Queue back, but remain angry with them for the same reason as everyone else, in addition to seeing them lead players on, reminding them that it's still on the way, don't worry guys, we're not lying to you, just wait, it's coming, it's definitely coming, no, we're serious, lol fuck you we lied.
The last thing I watched before I quit was the projected mage update. I'm just going to ignore the broken champions that came out of it and focus on one particular addition that ultimately made me walk away: Protobelt. Since Riot is so stubborn in their refusal to tackle mobility, their solution to immobile mages...is mobility. Holy fucking shitballs what a great idea. Let's not do a goddamn thing about mobility creep other than accentuate the problem, and you know what? Let's make it shoot rockets so mobile mages have another thing to add to their burst combo. "But they don't buy it." They want to buff Protobelt! It's the same problem as Duskblade, which was introduced with the same rationale as they used to remove DFG! You don't see collateral damage right now, why would you? People are building full tank on assassins for Christ's sake. Once you get rid of that, who's buying it now? Zed? Riven? Pantheon? Talon? J4? (Which was done in LCS recently) Rengar? Just wait for it to happen.
There's plenty more I could go on about, but those are some of the major points that led me to question why I'm even playing because going through all of the nerfs and buffs and the contracting reasoning to justify them would be way too long. Right now, I'm just hoping Season 7 will actually be fun. I might come back at the end of the season just to get my Victorious rewards again, but that might be all for S6.
/rant
Personally, Civ 5, XCOM, Vanilla WoW servers, Darkest Dungeon, and modded Skyrim have kept me company recently, and since my tendinosis has been healing, I can actually play guitar again. Not sure what you're into so I can't help much.