Why do I get punished for dodging a toxic game?

Last game, I had terrible teammates as in toxic. There was a 0/8 kenen that was like "ups, irelia killed me again" and a thrash talking mid jungle.

I'm not going to say I was not a problem, but I just got sick of it all and muted them all.

After we FF 5/0 at 20, I quoe up again, and suprise same mid and top.

From the very beggining they were already flaming at each other, and now i have a 30 min penalty ( I dodge another game before, didnt know brad was out so i did to get him ASAP)

So, I was suppose to play a game that I already knew was going to be toxic, waste 20/30 min of my life, OR just get a 30 min penalty beacuse I didnt want to deal with that shit.

See riot, this is the problem you you dont want to address, your policies NEVER punish the offenders. If a guys is trolling/feeding/wont ff/flames all game, BUT YOU go AFK, YOU get punished. If you dodge a game with CLEARLY TROLLS IN IT (KING OF TROLLS, there is a guy named like that, would you want to quoe up with him?) YOU GET PUNISHED

YOUR policy is to "deal with troll/feeders/flamers and report them after game" but we ALL know that does jack shit, unless they get 3+ reports.

TOXIC players get a free pass on everything, meanwhile, people who DONT want to deal with them get pusnished for doing so. Muting is terrible for team communication, dodging means I dont get to play the game while the guy will just go on and troll other game, and just straight up giving up and going AFK (i'm not defending it, but some times you just want to stop playing with some dudes) means I also get punished...