So I've been getting screwed over in Ranked

So ever since i started playing Ranked again there seems to be more trolls and afk's but for some reason i get the role of lets say adc. Some random person calls adc next because i didnt "see"my message in the chat. when the game started i couldnt do much because she was going adc and i couldnt do anything. I also i could support her because i was legit prepared for adc so i went roaming around because i know i was going to feed and i didnt want to. I dont know anymore. League has become more dumb because of people like them and ive been getting reported and low priority queuo and its not my fault that i cant do much. im not saying adc or feed but i legit got the role first. im getting sick and tired of you guys man. this community is nothing but people picking on other people.