The article I linked in the above comment about the leaked report gives a lot of evidence of the Blairites in the party doing what they could to lose labour votes.
I think it’s reasonable to conclude that without their sabotage, Labour likely would have won that election with Corbyn as leader.
Corbyn’s Labour was less than 2,500 votes from power in the 2017 election.
The article I linked in the above comment about the leaked report gives a lot of evidence of the Blairites in the party doing what they could to lose labour votes.
I think it’s reasonable to conclude that without their sabotage, Labour likely would have won that election with Corbyn as leader.