I think that was the goal since before the vote: they just had to get the people who would be worst affected to vote for it so it had a veneer of "democracy". It must have been so annoying to the Brexit leaders to find that in a democratic system Parliament actually had a say...I think what you've alluded to here is a massive part of the picture.
With Thatcherism, and any government coming afterwards, unionism was considered beyond the pale..
So we had clever ol Reaganism trickle down* divide and rule economics, break up and disempower the unions.
Now we have untramelled free marketeerism, zero hours contracts, and economically disadvantaged people scrabbling for a poorly paid job, driving frenetically for [insert delivery company nsme here]
Everyone being pitted against everyone else.
On a race to the bottom.
*It's capillary up of course, the wealthy don't let their wealth 'trickle' .. That's why they're so wealthy.. Hooray!!
The barely taxed well off can go "Look out you strugglers, that naughty immigrant is after the biscuit crumbs, that should rightfully be yours "
Of course now we're Brexitting - "will of the people" etc etc.
We can have even fewer of those filthy working time directives and social protections.