It was kind of the opposite - the party forcing Corbyn to support a second referendum lost a lot of votes in the North and led to them losing the election. The

It was kind of the opposite - the party forcing Corbyn to support a second referendum lost a lot of votes in the North and led to them losing the election. The alternative that possibly could have happened was a sanely negotiated Brexit, which would have been fine (lots of countries aren’t in the EU but have extensive trade relations etc.) but no brexit wasn’t really going to happen at the time.