Okay, and as one who has Aboriginal heritage, let me say this as clearly as I can please.

1. the percentage of Indigenous Incarcerations is high, Yes,
2. However, try to remember that there are good and bad on both sides of the fence,
3. since approx. the 1980's the 'Dole Mentality' has almost become a 'tradition' amongst the Indigenous peoples under the ages of approx. 50 yrs old,
   I.e. many of them would rather file a claim for Social Security, the Dole, than actually get an education past either year 9 or 10 at High School, this I have seen many times over for myself though also many do strive for and gain an education that leads to a good job with better pay, etc,
4. the Indigenous peoples under the ages of 50 years, in ever so many cases imho, either lack the leadership/guidance of the Traditional Elders, etc, or simply choose to ignore it completely, hence they fall under the 'spells' and promises of the so-called Do-Gooder, often Whites, who merely rabble rouse for the publicity angles, etc, they can achieve and gain for themselves,
5. the Indigenous youths so often and regularly seem to adopt both the 'Afro-American' attitudes, styles, etc, readily as well as an attitude of 'take what you want and bugger you to anyone who objects,' hence at least 60-80+ percent of thefts, home invasions, etc, are done by Indigenous youths and those under the age 50 years +, and when charged, tried and found to be Guilty they set about, via the Do-Gooder elements, to scream persecution,
6. When it comes to Formal education, etc, imho, the majority of the blame for this lack lays most squarely upon the shoulders of the parents in ever so many cases, i.e. the parents themselves would rather take the time needed to ready and get their child/children to school each day with trivial things such sitting around and smoking/drinking, etc, and leaving the child/children to their own devices, thus the child/children come to think of this as being the 'normal' and pass it on down to their child/children,
7. Each Indigenous child of School age gets paid 5 dollars per day, 5/7 every school week whether or not he/she attends school, this, imo, does NOT teach them that monetary gain comes from earning it but from merely 'putting out one's hand' and collecting it, a 100% WRONG attitude to start with,
8. and most importantly, I have known, worked with and still know quite a number of Indigenous people who have worked/still work very bloody hard in the jobs they have gained, are greatly valued employees, rarely miss a day at work BUT are literally SHUNNED by other Indigenous people because of their work attitudes and ethics, etc.
   Yes, Australia has a few things to answer for and correct BUT, imho, they are nowhere near as horrific as either the Do-Gooders imply nor as have the Non-Indigenous Americans have wrought upon either Afro-Americans or the Indigenous Native Americans.