Here is where you and I part philosophical company.    I  am an individual.  There is no "historical" responsibility for anything committed by others, regardless if those "others" were my ancestors.  I see no validity in that intellectual construct, which has no basis in reality. 

The  State has  certain legal obligations to Indigenous Peoples based on treaties negotiated in the past.  I bear no such legal obligations, nor should I.  I should be held accountability only for those actions within my personal responsibility.    Such legal obligations should evolve with time, as all laws must evolve. No law exists forever.

As  a Jewish person who had relatives murdered in the Holocaust, I  do not believe the German people owe me anything.  The old Nazis have all died off and the current generation of Germans is composed of individuals none of whom participated in the Nazi genocide.  They owe me nothing for historical wrongs.  I apply that same logic to Indigenous peoples, in reverse.