Peak, you're just being silly now. A householder has the right to report someone being aggressive at their door, doesn't matter who they are.
As I said, efforts are being made to include everyone in the census. Teams are being sent to traveller sites, all sorts of different immigrant communities, everyone. If people choose not to participate (for whatever reason, and whatever their background) then they somewhat lose their right to complain.
Like I said peak, I don't care whether you choose to fill it in or not. If you are unfortunate and get a £1000 fine, you'll be the first one on