That's one way to look at it.
How much of the green can the British lay claim to?
And how much of the yellow here?
This reminds me of the monty python sketch in the 'Life of Brian' where the Palestinian freedom fighter, desperate to break free from the 'oppression' of the evil roman empire asks 'What have the romans ever done for us?'
Yeeerrrrr. Say the crowd ready to riot.
'errr. The roads. They built the roads' says one would be rebel.
'Apart from that' says the beligerant leader. 'What have the Romans Ever done for us'?
'Sanitation.'
'Apart from the roads and sanitation? WHAT HAVE THE ROMANS EVER DONE FOR US!'
'Medicine'
'And Apart from that?'
'Eduction'
'Rule of Law'
'Advances in science'
'Setting up a stable economy'
etc. etc.
'Yes, yes yes but apar from that - what have the Romans ever done for us! KILL THE OPPRESSORS'
And so on. Doesn't transcribe well - but is funny as heck with John Cleese.