The title is pretty explanatory. I guess we all run into this problem once when we were playing solo.
I think riot should just forbid 4 premade games, because it is going to be most of the times hell to the solo player.
I played this kind of matchs many times and the last 5 IN A ROW (yes I counted) I got the game completely ruined because it is always 3 guys feeding and ruinning the game like shit because they are completely focused in talking to their friends in discord not giving a damn about the game. And of course, if everything bad happens they blame me and they all support each other no matter how wrong they are, left alone that I cant even think about speaking.
Just forbid 4 premades... If you are 4 just play different games like if you were 6 or search some other friend to make it 5 but for %%%% sake dont make a solo player hostage in your feeding game that is more like a chat room with League as a background...