There is an issue in British society that is not being addressed by the government of the day. It did for the Conservatives, and the fact that Labour is now also tearing itself apart is indicative of this problem. A further pointer are the massive election wins by Reform UK in the local elections last week; also the large numbers of seats they gained at Holyrood and Cardiff Bay.
Reform UK is a single-issue protest party, focused on immigration. And whatever also ails Britain is deflected onto that issue. The matter of the small boats, it would appear, is the result of the actions of *one* individual gangmaster, who has (thus far) eluded capture by European authorities. From my perspective, the French authorities seem to be either powerless or unwilling to make a concerted effort to deal with the migrant camps between the Belgian border and Boulogne-sur-mer.
Throwing Keir Starmer under the bus will not resolve those issues. Any successor will be confronted by the same problems.
May I remind readers of pre-war Germany, where Adolf Hitler promised to deal with all the ills of German society, post-WW1 - by victimising one group in society.

The flame is a warning from the past.