...I want to know why everyone seems to think being positive helps.
Because it does. Morale is a thing, and being positive can raise morale and help your team play better, even if only in little ways. Toxicity, on the other hand, hurts morale, making your team play worse.
And that's ignoring the fact that flamers tend to focus more on flaming than they do on the game.
...what I seem to see is that all of my plat+ friends seem to be more toxic or say that toxicity does not matter...
The video above also shows qtpie and turtle expressing how toxicity is good and stating the reason NA is bad is because no one seems to care because they will get banned if they flame.
Maybe, just maybe - and here me out here, this is gonna sound crazy - but maybe they're only saying that because they feel that being good at the game justifies toxicity, rather than toxicity and skill having any actual correlation?
And this part's gonna sound even crazier; what would happen if they tried not being toxic? D'you think they'd suddenly play worse, or perhaps they'd actually win more? 'Cause I'd wager that if they actually tried being positive instead of toxic, they'd climb even higher than where they are now.
As for QTPie and WildTurtle's thoughts...So what? They think that NA is bad because we punish flamers. Not being toxic doesn't somehow mean you don't care about winning or anything like that, so what's it matter what two people say?