Why is flaming/reactive toxicity always reported but...

...other bad and game ruining behavior is partially tolerated?

I mean, when someone does verbal abuse or is really toxic they usually get close to 9 reports, but AFKs, intentional feeders, trolls, thrash talkers/mastery spammer, etc in my experience don't get reported often, and almost never by the opponents.

This makes me wonder two things:

1. Why is the first behavior considered worse when 90% of the time is just a result of the other? If you follow the rules and don't ruin the experience for others you will get few flamer/toxic players (except the ones who flame for being bad or making a mistake). But it doesn't work the other way around, you could stop being toxic/flamer but still keep suffering AFKs, trolls, etc in your team.

2. Should the lack of solidarity or whatever you want to call "not reporting a troll", especially if he was on the other team, be punishable? There is a lot of players that not only refuse to report, for example an AFK, but they make fun of you and start calling things like "salty", "cry more", "mad?", etc. I know that you can't force people to report others, so why not reward the ones who do? Just an idea that could be implemented multiple ways.

I know there are thousands of posts like this one, but I really feel that the system is too soft, I see trolls that should be banned in 70% of my games and they just make fun of the system, "yeah report me, as if I care", "ohh a report, I'm going to cry". You should be able to report a player in champ select too, a lot of them start to troll and you only have two options, dodge and lose LP, or play and lose even more LP, it's really unfair.

AFKs/Disconnecters: "It's not his fault", "maybe he crashed", "never happened before", "what can I do?" I think none of them are valid reasons to not report. If he has bad connection/computer he should know and refrain from playing, because he is going to ruin the game for others. You should know your ISP, and if you are right and it only happens one time, then no need to worry about reports, the punishment will be minimal or nonexistent.

Feeders: "maybe he is bad", "He is having a bad game", "being bad it's not a reason to report". IMO the point here is that people only report clearly intentional feeding, but I think you can feed semi-intentionally too. When all of your team is saying you to not do something, you try to 1vs1 again and again, play without care, etc. maybe your goal is not to feed and make your team lose, but by voluntarily being careless/lazy/having too much ego you are throwing your game. The example would be, you dump a cigarette and make a fire because of it. Your intentions were not to burn the forest or your neighbor house, but you could have prevented it.

Trolls/bad behavior: Spam mastery/laugh, spam surrender, "gg ez", "get rekt", "I'm going to feed/take this troll pick.... nvm it was a joke", instalockers, ragequitters, "I follow you all game stealing minions and jg camps", "I go full dmg as a support, never taking sighstone nor pinks. we lose the match but I got more kills than you so I'm better", "- gg wp, pls report Lux AFK -> - stfu, you are so bad, we win even if she didn't afk", "I flood the chat all game in a language only my premade and I understand", ppl who ban a teammate's pick intent not being a trollpick and I could go on forever. These are almost never reported by the opposite team and, what is worst, when a troll/toxic player carries your team 95% of your teammates refuse to report him. This is the lowest and most unsportsmanlike of all LOL behavior and should be instabanned, say I could be offending and trolling my team all game but if I end 22/0 and carry the game I won't get reported? The people that think this way is just the worst.

TL;DR: Flamers get too bad reputation while other types of bad behavior that truly ruin games/player experience and, in most cases, are the causes of flaming, don't get reported, especially by opponents or when the offender performs well in game.

P.D.: Yes I lost a lot of games recently and got chat restricted for trying to argue with the trolls, and with the ones who refuse to report them because they like to win easily.