you're* (huehuehue)
Riot believes in turning the other cheek/taking the high road/being the bigger man, and having faith that their IFS is doing it's job/working as intended because they say so. Yes, it sucks. Yes, it's hilariously pathetic to many of us...but it is what it is, and if you want to play their game you have to abide by their safe-space rules.
Honestly, I would take the 2 weeks to find another game...you'll probably find that you're in a much better mood, and actually decide to not even really come back to League, or drastically reduce how much time you spend playing it.
Otherwise, just level up a smurf or something, kill time until your temp ban is up, and be happy that you have another chance and weren't perm banned like a lot of people have been for 'stupid' reasons.
Oh, and I would seriously recommend just muting everybody/unbinding your chat key/removing your enter key from your keyboard when you play, if that's what you need to do to not talk to people. There is a LOT of Grey area regarding 'toxic' chat, and no CLEAR outlines regarding what constitutes it, really, so it's the easiest way.
You can get your honor rewards back fairly quickly after your ban is up (my bro did it in about 3 days), although I'm not sure how long it takes to get out of the 'dishonorable' phase.
But seriously, that second 'real' paragraph where I mention finding another game. I would strongly consider that one. I bet you won't even WANT to play League as much, anymore, as you'll find yourself in much better moods not having to deal with this Toxic af community.