In all honesty, it's not right to be comparing migrants with the Aboriginals. Even if you were to compare the most disadvantaged type of immigrants, like refugees from war torn countries, it is not a fair comparison. One is a group of people who could be from any type of "original" situation that were suddenly forced to flee their countries, rich, poor, hardworking , bludgers, etc... it's a mixed bag.

The other is clearly a race that had been "vanquished" as a result of colonialism. They didn't go anywhere, they stayed where they were and had their lands taken away from them.