Yes, there was a genocide against indigenous peoples, and also that same genocide still continues. You called it

a completed project. A holocaust that went the full distance.

It's racist to claim that indigenous people were fully wiped out, when they have survived and continue to live and struggle against the ongoing genocidal violence against them. Pretending that they were all wiped out is harmful to indigenous people and furthers the narrative of colonizers. If indigenous people were all gone (they're not), then there would be no one to pay reparations to, no one to cede land back to. The idea that indigenous people are all dead and gone is part of the ongoing narrative of violence against them. While it is true that indigenous peoples are still struggling against the genocide of governments and settler colonialism, it is also true that many indigenous cultures have undergone a renaissance, with renewed projects to teach and preserve languages, and online spaces for sharing culture. Talking about the genocide against them like it was a "completed project" is wrong and racist. Despite the harm done to them, indigenous people still exist, and we should listen to them and work with them to create a better future.