I’m going to get the ‘bias bbc, bias media’ response to this. But check out other news outlets, Facebook, Twitter etc. They can’t all be wrong....
https://www.thetimes.co.uk/article/we-voted-for-tony-blair-but-dont-mention-corbyn-in-sedgefield-9k7cv0wj7
https://www.telegraph.co.uk/politics/0/why-jeremy-corbyn-unpopular-polls/