Perfectly winnable games are being thrown away like garbage

I'm going to climb again with more games after this loss streak passes but this is so annoying. I'm not tilted i'm playing the exact same way as I was playing while I was on a winstreak. Perfectly winnable games are being thrown away due to my teams poor decision making, its almost unbelievable. No joke, every single ranked game im playing bot I am absolutely destroying bot and getting fed off them and the jungler but after I win lane my team goes into complete cruise control. They see me killing everyone and they assume they can do the same thing I am doing and don't understand that an immobile adc has its limits. Most of the time, they don't even seem to grasp the concept that the only reason team fights are being won because of me and my damage alone. Here are some common things that keep happening.

• They attempt to fight without me

• They engage fights when they are clearly outnumbered

• Positioning doesn't even matter the enemy top laner could be behind us trying to flank and kill me but they will attack what is in front of them No one else will go and stop a split push so they get multiple turrets that or I leave to stop the split push and they get absolutely murked

I'm trying to carry, I really am but these players are making it so difficult. This doesn't even include the factor that our top or midlaner might have gotten their lane completely fed. I played a game where our riven didn't know how to actually roam and left her lane at the wrong time because she missed a few waves and their laner renekton was 2 levels above her when she returned and she ruined her lane and renekton got fed. It's almost like in my recent games my teammates know no strategy what so ever and know how to play the game but make mindless decisions and throw the game completely. I almost feel like I am wasting my time with half these games. I know what I have to do to win the game but the other players are making this seem like a 1v5. I'm one of those loss streaks but it will pass in a couple games. Gotta play it out and waste my time.