Corbyn has fucked up an open goal, the Labour Party and huge parts of the country (and almost the entire youth vote) want to remain, you cannot bring two completely opposed views and unify the country on the topic of Brexit, it is a binary choice, in the mind of the electorate politicians are highly distrusted, what people want is clarity (Brexit party or Bollocks to Brexit) by trying to appease both sides he's shit the bed.
I hope to fuck we don't leave in October and we do get to vote in an election or referendum but in either of those events he should change course to a clear remain platform or step aside as he will not beat Boris (who is the current favourite) in a million years with his current strategy, the only platform to beat Boris on is a remain one