They're really descending into the pits of weird fringe politics - like the sort of stuff you'd see from pre-Farage UKIP.
It also seems to be the opposite strategy to Johnson, who was essentially the bullshitting yes man that wanted great, wonderful, positive things for everyone but with no plan on how to achieve it. Instead of grand visions of new (unfeasable) infrastructure projects based on (non existent) future technology that the government will help develop, and impressive sounding targets (with no execution plan) to "make Britain world beating", we now have policies seeking to actively block and slow development of anything new. Johnson was popular because he was promising progress and great things to everyone. Sunak is now attempting to do the polar opposite of what Johnson used to achieve electoral success, presumably because he's aiming for the opposite of electoral success???