I don't understand this game.

I don't know if it's just NA, but I sometimes run into 12 year olds on the internet without their parent's permission, I will not name and shame, please tell me down below if pictures are considered name shaming, but here goes, I ran into a game with a Bard top, I was skeptical that it will work, anyways, he ended up trolling, saying 'He has fun', intentionally fed the entire enemy team and told me "go away and play ranked, you tryhard". I was really upset, I tried my best as support to try to make my adc do good. Next thing, enemy team bot lane duo who lost badly to us starts flaming me tremendously, calling me a 8 year old, then 9, told me numerous times I got rekt and I'm a crybaby.

I really don't understand this game, I have pictures of chatlog too. I love this game, 10/10, people like this don't get banned, I don't see why not, they intentionally feed, some verbally abuse you.