I would say that reparations are not being made to African Americans and indigenous peoples because the expropriation of wealth (through people's life-chances, well-being, labour, bodies, lives) is ONGOING and vast. How is America - the West, frankly, going to repay that debt? The West is still reliant on it. Should it repay the debt? Well, yes, frankly. In some way: yes.
I suspect there are vast cultural and political impediments to a thoroughgoing analysis of the traumatic (and economic) effects of the slave trade. I don;t believe I will see a resolution of this in my lifetime, frankly.
I would say that one of the things we should reflect on vis a vis the Holocaust is the level of denial that operated as it unfolded: many people were able to live as though it wasn't happening. The Holocaust happened at the level of the state, and with the collusion of the world. While it was happening, Germany was not castigated as a "rogue state". There was protest but it was suppressed or minimised by the existing systems of authority - systems of authority which were able to name themselves as "civilised".
I would argue that we should pause a moment and contemplate how similar that is to the situation vis a vis African Americans (for example) in America today.
I don't think pitting African American experience against Jewish experience is helpful. I think looking at similarities is helpful. I would say that your posts actually bear my point out. The slave trade is, of course, an atrocity. It is an atrocity that has its own name, its own reality - it cannot, should not, be subsumed within some blanket term 'atrocity', and just be one incident among many - its singularity, its particular content of horror emptied.
Personally, I think the thing we need - with some urgency - to learn is how to think of these things both together and apart - and in way that help us fight and resist in the present. I guess that is what I mean by active remembering. And I, personally, would not choose one singularity over another in terms of importance. I think to do that actually plays into the hands of those who would like us to forget everything and learn nothing. I think that is the logic of a killing similarity - one that reduces these historical events of atrocity to a content-less identity-that-can-be-substituted-one-for-another.
We cannot fall into the logic of either the slave trade or the expropriation of resources from indigenous peoples or the Holocaust - we need to think about these events - and more - and link them to the present. That seems really clear to me when I look at what is unfolding in America at the moment and when I feel sickened by the dehumanisation of people by use of the term "migrants" in Europe. These are ongoing issues, right now. I don't think "the past" does just stay sitting there in the past. In a very real way, it here with us now, in the present. I think we need to make some sort of pact with it, to try and make it our ally in thinking through how we live now. And how we help others to live - not destroy their lives.
I wasn't going to post any of this because it is such a complex issue and I really don't want to derail a thread.