Supports purposely sabotaging games should be a bannable offense and not considered "off meta"

I just had a Sona in my game who was titled from champion select. In the beginning she typed in chat "what does this Jinx want" and I ignored it. When the game started I slowly started to figure it out. At first I thought it was an accident and thought she was probably a really bad player, then I realized she kept using her spells on the minions waves and taking cs on purpose. She wanted to take my cs from the start. She would Q the wave and take cs even when brand or Kai'sa weren't present in the lane. I told her to stop and she said "I will stop taking cs when you stop afk farming" ???. First of all, she was taking cs from the beginning of the match before anything had even happened and 2nd of all I was poking them and doing damage so I don't know what the whole "afk farming" bit was about.

Even if you are playing support and your adc is "afk farming" you don't have the right to take their cs and completely sabotage the game. When you play support you have a support item that allows you to collect gold but not killing minions. Plus when you take an ADC's cs you are trolling the whole team because you don't have any team fight damage whatsoever. Adc items are the most expensive items in the game. I could barely stay in my own lane cause kaisa and brand kept poking me and sona kept typing in chat how I was "A useless adc" when I know what I am doing and am very much experienced in my role. She had about half my cs at the 7 minute mark just by clicking Q and damaging the minions so they would die before I could auto attack.

I was pretty much useless the whole game and tried to catch up in cs but Kai sa got so far ahead that we couldn't do anything. People that enter this game tilted af is actually stupid. I just wanna play my lane without somebody trolling on purpose. I swear to god recently iv'e been getting place in a low priority queue. Reporting her won't do any good cause she didn't really say anything bannable and this type of trolling is acceptable.