All those groups have had their children stolen from them too, in the case of Indigenous persons, it was also by law, and systemic. I don't know that it's worse to be sold away or having their identities stripped away. I do know there's been more done to right the wrongs done to Black Americans than Indigenous Americans (legally and systemically). I know that Black Americans are still struggling and so are Indigenous Americans. I also know that making it a competition of who's pain is worse is a deflection of the problem, which is exploitation in all it's forms. We can talk about the peculiar impact.and particular challenges each group faces or has faced (historically speaking) and the legacies of all that without it taking away from anyone else's suffering and challenges.

The particular brutality of chattal slavery does not make any other kind of slavery or forced/coerced labor okay because it's less severe. Nor does it make those who perpetuate any form of inequity based off it in any form less morally corrupt or less guilty of upholding it.

We should also remember that slavery is a slippery slope. It rately starts off as bad as it gets. Once you open the door, again in any form, you start heading down that path.