So your argument is basically this:
They lived there for over 30,000 years, but because their ancestors migrated there in ancient prehistory, Europeans who arrived yesterday suddenly had the right to murder them, steal their land, break treaties, erase their cultures, and call it civilisation?
They migrated thousands of years before modern nations even existed.
You colonised.
They became Indigenous to that land over tens of thousands of years.
You committed genocide.
Those are not the same thing.
You are a joke. Bye.