That 'normal folk' bit is a part of why remain didn't win and labour are bleeding members and voters even in the face of an incompetent and clearly immoral opposition.
Labour is supposed to be the party of normal folk, working with and understanding their needs and concerns not sneering at them and assuming they're thick because they don't agree with you.
Normal folk in normal towns have seen what, for example, total free movement of labour actually means for pay and rents and job opportunities. There are genuine issues and concerns that haven't been allowed to be discussed or represented without middle class ideological leftists crying bigotry and ignorance and alienating their traditional core voters.
Working class people at that end of the scale also weren't benefiting from Erasmus grants or the unaffordable aspiration of sending their children to study overseas.
You also had the reality that Corbyn and the original left ideologically are not remainers. Protecting workers rights and importing workers from lower income but higher education countries don't make any kind of bedfellows.
Corbyn is not a remainer at heart and therefore he also lost his 'man of integrity' usp because he didn't have the courage to say leave but reframe the rhetoric of why and to what ends.
If Corbyn had been allowed to stand by his core values and acknowledge the EU was not compatible with the interests of British working class labour and why labour would have won.
Instead we ended up with a party currying woke favour over Europe and pretending not to know what a woman is and signing up to pledges that would see women expelled from the party for wanting to retain women's sex based rights.
They fucked it up hugely and can't regain power without the working class, unions, the grass roots women they've shat on through their unquestioning allegiance to gender ideology, the teachers, the people competing for low end jobs and rented accommodation etc etc.
In pleasing a very vocal privileged minority they have lost their core support and their identity and any clarity of who it is they're actually representing.
British politics is a mess but again that's not the issue here. And that needs tackling from within our borders not an external imagined saviour.