without putting inequalities to rights just hides the issue from sight.

That's one conclusion - but there's a whole debate about how best to move forward that your conclusion just ducked. Making descendents pay for the mistakes of the ancestors vs. wiping the slate clean of all cultural baggage.

In practice, the distinction matters less because we haven't found any successful (or even partially successful) technique that wipes out all cultural baggage. But if I found a pill that could restart all cultural baggage for everyone but prevented all reparations, I'd be sorely tempted to use it.

That viewpoint, in itself, is at least partially cultural.

Yes, there are other means of oppression; people can be oppressed for having the wrong sort of noses, or living on the wrong side of the river, or coming from the wrong family. These I see as seperate, though related problems; resolving the issue of race will do nothing directly about the other problems (and may even throw them into sharper relief), but I don't think it's a good idea to refuse to solve one problem just because others might still exist.