What do I do against feeders??

As of right now, I just demoted to silver IV. My peak was Silver II in my promos. In my games, I usually always get fed in the mid lane (check my match history, OraoAlign), but someone on my team constantly feeds. I'm not sure what to do and it's super frustrating. It's not like I can report them for doing bad and I don't want to be toxic. I have been slowly thinking about quitting the game, as it keeps irritating me that (not to call anyone out, but) either jungler or bot lane feeds. Am I doing something wrong? Should I be the one to take blame?

please help me