TBF if anything that proves the uselessness of this culture war nonsense and its backers. When Sunak appears competent his polling goes up; when he puts out stuff like STOP THE BOATS it goes down. For all the habitual nature of the Tory vote, it is hard even for them to understand why spending extra billions on preventing cross-channel migration is resulting in extra cross channel migration.
If the government accepted the Tory-proposed amendment about establishing other safe routes, which would massively reduce numbers being smuggled in the boats, his polling would go way up just because what he would have done would have worked - they'd reduce numbers and save money.
However he might not do that because the people who hate him in that party, the people who led them into this abyss, the people who will stab in in the back the moment they think they can get away with it, would be upset. He should - he needs - to destroy those people politically; use the example Johnson provided with Ken Clarke and Grieve and just bin all of them off. The country would be vastly better run and safer if he did so.