Premades are not all toxic.
Yes, I get there are trolls out there that roam in packs and ruin solo queue for people. But at the same time, I have had so many times when someone who loses a lane or gets fed up, and rages at me or a friend. Then the person proceeds to immediately go to all chat and cry to the enemy team about how the premades are bullying him or trolling him or flaming him and lying about it.
Yes, I get it, there are people who gang up on you, but that doesn't mean you should believe anyone who tells you "the premades are screwing me over". One recent game, the Jayce on our team fed his laner, and tried to blame the loss on us for picking a weird comp bot despite us never going mid, and the enemy midlaner never going bot. When I copied something he said to our Kled to all chat, he called me a liar and begin to lament about how premades gang up on him, then proceeded to troll and do nothing the whole game.
Guys, come on. Just because I'm playing with a friend/friends doesn't mean I'm trolling you. If I tell you, please stay under tower because so and so, I'm not bullying you. And if me and a friend play off meta lanes that is working or not doing too bad, that doesn't mean we are trolling.