You are probably not being rude but you are obviously not aware of the actual facts either.
I do agree about immigration though, there is definitely discrimination mainly because of situation in Pakistan. A lot of applications have been declined with no apparent reason, number of Pakistani students has declined and we hardly ever hear about a new Pakistanicoming to Australia. I applied for my family members visit visa but it was declined even though they genuinely wanted to sepnd summer holidays here and we gave enough evidence that they wil return to Pakistan.