Thing is, though he aint been very good at all (in my eyes) he was voted leader by people whoever they happen to be, by a huge majority, last i heard that was democratic, The majority of Labour MPs have never really supported the man, the people who voted him in bothered to pay the subs and are grass roots people,as far as i'm concerned many Labour MPs have forgot the meaning of Democracy, and by calling on him to quit, you are actually backing a nest of vipers imho.
I have just seen on twitter our own MP says Never once has Jeremy Corbyn said he supports Labour!! funny that, Can you recall our MP supporting his constituents over brexit? cos i certainly cant. Well to be perfectly honest i would rather support Corbyn than an MP who does that.