Healing the divisions of the past all over the world

I personally think that we as people all over the world have to try and heal the divisions of the past. And it can start with you. So let's heal the divisions of the past. What would you heal?

I want to heal my wounds and scars

I would heal the wounds inflicted upon third world countries by first world countries who exploited the people and resources of the third world countries.

I would like to heal the wounds that the colonizing countries inflicted on the indigenous peoples,
like Portugal with the indigenous tribes of the Amazon,
the Americans (not all) with the Indian tribes (like Iroquois, and else ...)
or like China with the Uighurs (although this subject is a little sensitive)

Heal?.... Take me as a cynic but I don’t think many of these wounds can be healed, unless both parties are in agreement, which is rare because then those acts wouldn’t have occurred in the first place. The lives lost and the pain felt will not disappear.
The people who were on the receiving end will end up hardening themselves to such things, no matter kind of people they are.
It would be nice to believe that all wounds are capable of healing, and even if they do that scar will once again end up ripping open.
But, if it can truly be healed, I would wish for those countries and people who were exploited for power and wealth to have their “wounds healed”.
The rich will stay rich if the poor stay poor.