There is doubtless a bit of moribund moggy about this. But TBH I think the greater part of the explanation is that Labour are terrified of the small boats problem and want to look tough and effective. That’s why they’re pinning it all on illegal employment.
The fact that this has obviously come out of a crappy late-night ‘strategy’ meeting and, more to the point, most people see through the nonsense, just makes it yet another Labour dud.
This will do Starmer a shit load of political damage: the lack of a mandate, lack of a decent explanation, high-handedness, general scepticism and opposition, this cannot work and will be a huge embarrassment for the government.