"ENGLISH, born, bred and very proud of the fact.
They may try and take my country away from me, but no one can alter this fact. "
Is this normally what you say to people in real life when they ask where you're from?
I'm beginning to imagine you sounding a bit like Mumm-Ra from Thundercats...
--
The woman in the article isn't attacking the fact that she was asked where she was from, it was more the mentality behind it - the assumption that if you're non-white then you are intrinsically less British (which to be honest you do seem to share, so I can understand why you don't see it as a problem).
I really don't think the author of that article objects to such questions in small talk/polite conversation - but think about it, if you've been asked it so many times it must be easy to sense that mentality she's talking about a mile off. That's what she's attacking.