Not going to lie a lot of people play this game and their goal isn't FUN it's winning. And for some reason they think they're really good, when most of the time they aren't. I don't want to assume but I'm silver/gold there are a lot of players stuck, they have gotten to the point where they think silver Elo is trash and that they deserve more, so Intead of learning from a loss they will just assume it was their teammates fault and not theirs. It blocks the progression mind set imo and allows players to get super tilted very easily.
Not all silver players are bad, I'm not ego stroking I've learned a lot from climbing the ladder (ended season 6 as Diamond 4) I know this is super generic buttttttt I actually won a lot of games by telling my teammates GJ or WOW THAT WAS A SICK PLAY. Morale is everything i believe so I used it to my advantage to lessen the rage. Even yesterday in my diamond game 5 mins in a guy rages cuz our top laner gave first blood, prbly trying something risky. Sadly nothing I said worked that game, he just told me "sorry buddy ur gonna lose this one" not another word. I see that in silver rage can get nuts I do understand the pain of toxic players. I smurf with irl friends and I'm helping my buddy by coaching him a little and just showing him the things I've learned. Sucks some times you're just super unlucky to. 5 losses yesterday 1 rage 2 intent feeders (like no joke I'm not sure what happened but the midlane was running into towers from level 1 said nothing in chat ever, other 2 losses were prbly cuz I was tilted and trying to play RIP demoted to d5
Sry I ranting
Tldr
Use morale as a tool and see if it works for you. Use the mute button often. Stroke egos of your team if u need to. Narrow champ pool like last post.
Good luck!!