It's the British Isles. Scotland joined England in the United Kingdom.
This is just one where you're clearly incorrect.
Colonialism developed as a concept describing European colonial empires of the modern era, which spread globally from the 15th century to the mid-20th century.
That kills off almost all of your examples.
That people in the comments aren't even taking the time to check the definition of terms is sad. The statements pro colonialism reek of racism and white supremacy.