Any conversation that Labour has regarding Brexit is an opening for the Tory ERG to push their own twisted narrative. Since Tories control the media, then that will be the loudest voice. Labour will not fair well in that sort of fight. There are still plenty of idiots who do not accept the damage that Brexit is doing.
The latest yougov poll shows that:
If the 2016 referendum on UK membership of the European Union was being held now, how would you vote?
31% would still want to leave the EU, with only 55% would be voting to remain
If there was a referendum now on whether the UK should or should not join the European Union, how would you vote?
32% would be against with 51% would be for it
So for all a lot of the country is aware how damaging our Brexit stance it, this is not really enough. We cannot convince anymore due to the strength of Tory media. The only way Starmer can beat this is by giving facts when in government. While keeping in mind that we will only ever get one chance to reverse this fiasco, would you rather it was done in haste or with as many educated as possible?