* A rousing public speech is very different from actual policy. A sibiling comment to yours make reference to a plan by the Japanese, made in secret and actually started, that was known to cost millions of Japanese lives and wasn't even meant to secure victory but just better surrender terms. Your quotation doesn't come close to showing that the British would be prepared to do something similar. (In fact I'm sure I read about a plan Churchill had to surrender if Germans did make it onto British soil, but I'm not going to search for it now - the burden is on you to show that the British wouldn't have surrendered.)

* Aside from broad policy, the difference in attitude is clearly shown by actions of individual soldiers. Individual Britons in theatre would usually be prepared to surrender if their situation was hopeless, as shown by the number of actual British PoWs in WW2, whereas this was much rarer for Japanese soldiers.

To meet the first American invasion of their home islands, the Japanese had 10,000 kamikaze planes prepared. They had millions of civilians prepared to serve as suicide bomb carriers against the allied ground troops.

Let me know if the British prepared troops and civilians to use suicide as a weapon against a German invasion in any significant quantity.

>Truly inspiring in comparison with the robotic obedience of the Japanese who would dig in to protect their island, whatever the cost may be.

That's not quite the case. The conditions of surrender proposed, which the Japanese government rebuffed (or, 'mokusatsu'[0]) particularly included that Japan surrender its control over Korea and the island known now as Taiwan. It's more accurate to say that the Japanese empire would dig in to protect the areas they'd acquired, not just their island. In Korea, they'd put a lot of effort into trying to integrate the peninsula into Japan proper, for example linguistically.

[0] https://en.wikipedia.org/wiki/Mokusatsu

The British had several military units surrender during WWII. As far as I know, the Japanese did not.

I see the point you’re trying to make, and by no means am I saying that the British were without fault, but there is a very significant difference between the the British defending their liberal democracy from Nazi domination and a largely rural, largely uneducated Japanese population being conscripted into fighting a war of aggression on behalf of a totalitarian state.

Yes and no - UK was actually a colonial empire at the time of WWII and had conquered and subjugated more land and peoples than the Japanese ever managed. While the UK itself could be termed a liberal democracy, most of its subjects had no say.