You are completely overthinking what was a final observation about the fact that a governor of the bank of England had just been elected PM of another country - a unique scenario - and that his tone on the importance of sovereignty and economic independence are of course different. I get that. The context is difference, but it's still an observation. He was happy for the UK to lose independence over tariff setting etc, yet stresses the importance of Canada being able to do so.

You can use the exaggerated language if you want. It's hardly uncommon for people to do so, but I don't think it's an accurate representation of reality, to summarize the UK enacting a democratic result as "bleating" or to just refer to people as 'lunatics" but that's your prerogative!