ranked ban

so i got a ranked ban. im normally okay with taking my lumps and just powering through it. but i dont see how this helps people be less toxic in ANY way. im trying to win my games so that i can get back into ranked, and i get people in b4-s5 in my teams constantly, ____ or feed people, or just people who don't really take norms serious(not that bad compared to the others) winning 30 normals before ranked ends is gonna b e a huge nightmare thanks to garbage matchmaking.