[arsenal]

Ok, replace the word "British" with "Belgain" or "Austrian" or "Polish". Is there any evidence, that during the Nazi occupation of Europe, that any of these people resorted to suicide bombing? None that I can find.
Sure, there was resistence, or insurgency and some could consider that "terrorist" activity, but AFAIK they did not resort to blowing themselves and a bunch of innocent people up.

Now, how different are the British people compared to the Belgains, Austrians, or Polish? Probably not very different. So, the assumption, that Brits would resort to suicide bombing when faced with an occupational force, is a rather far stretch if you ask me.