Whenever these discussions popup you always see people arguing in bad faith. "But what about the Americans, Chinese, Germans, apartheid...". That is very disingenuous. You absolve those who did these terrible acts by spouting "what about X or Y". This contributes no value to the discussion and only looks to divert the attention elsewhere.
On the point of the thread: It is good to acknowledge the crimninal and cruel acts of the past but without proper representation, education and preservation of culture these words are meaningless. As another person in this thread has mentioned before without real tangible changes to society (like what we see in Bolivia) the indigenous communities will continue to be ignored in Argentina.