Empire which was revoked due to being an illegitimate and genocidal regime. Your argument suggests they should be allowed to re-steal now what they would have stolen back then.
Also, all the global empires have been built on the same coercive foundation, and that doesn't make them "regimes".
http://historynewsnetwork.org/article/7302
Well, it looks like there was, in fact, a vast genocide. In the north and also the south americas. Really sad...