I am staggered that you think Jeremy Corbyn is unelectable. The previous election in 2017 showed that Labour could make a very effective challenge to the Conservatives. For me, the problem is that the media seems to be ignoring all the good work realigning Labour back to it's core values and concentrating on the non-story about anti-Semitism. I have lot count of the number of times that Jeremy has had to explain the party's position whilst a number of politicians on the Right of the party try to sabotage his tenure simply because they are not genuine socialists.
It will be a tragedy if Corbyn does not get elected. Few politicians have had his integrity and strong moral compass, always fighting for the poor and those marginalised by society. I hope that Momentum ensure that those politicians who are not on board are deselected in the next general election. Either you are on the bus or your are not. We have the chance to rectify 40 years of disaster and I think most genuine Labour supporters appreciate that Jeremy will represent a sea-change for western politics.
I do not feel Boris Johnson will fair any better against the EU. Parliament will not allow a no deal Brexit to proceed and I feel it is obvious that we will have a general election in the autumn. No one forgives the Liberals for being liars and helping the Tories assist with austerity. They cannot be trusted. The only way out of the mess is with a Socialist government and I am almost inclined that we need one with a good majority in Parliament so as to wipe out any opposition so that the things that need to be implemented to sort out the morass that has accumulated since 1979 without opposition from parties whose interests have been unfairly protected since this time. For what it is worth, Momentum are currently campaigning to unseat Boris in his own constituency which is considered by Labour to be winnable. I think that Jeremy will prove many doubters wrong and with the energy of the people within the Socialist movement, I think that some serious wrongs will ultimately get righted with this countries first genuine socialist government. That said, a more demonstrative show of disapproval following the "coronation" of Boris would have been appreciated from Labour - I am not a fan of the SNP but Sturgeon always manages to come in with just the right and well judged sound bite.