I don't think anyone is denying the fact he's a liability, but it's hyperbole to say he's the reason we didn't get 4th. There are plenty of games that we've won comfortably, but were cushioned by an early save or early last ditch tackle - would the derby have been so comfortable if Sakho hadn't got that tackle in early doors against Lukaku?
No one has their "heads in the sand". If you ran a poll of positions that need addressing this Summer, the GK and defensive ones would come out on top each time. But there are a myriad of reasons we didn't get 4th. We lost one game we should have been winning because Klopp dropped Ming too.
So mark, 12-15 points lost as a direct result of his errors. We should just pretend "those aren't the points you're looking for?" Again, the idea he cost us the CL spot stands because this is the one position on the field where individual error is paramount and can cause a reversal of fortune.
I also think we could have won the community shield next August if he wasn't so bad,...