I didn't say Real Australians don't want to work. I said they don't want the kinds of jobs that Indians, Chinese and others typically do. And I'm generalising here, as you are. If they're sending some money overseas to help support their families, then good on them. Your $25 billion, if it can be believed, works out at about $20 per week per person, so it's hardly a large amount that is not being spent here. They've also typically earned that money, paid their taxes, and will spend far more than they send just on daily living. Overall, they are an asset to the country, not a liability.
I might add that I'm also not a Real Australian, by your definition, so you would probably resent me being in this country too.