Aboriginals were an aggressive people and had superior weapons, and travelled and colonised UK because they classified UK as terra nullis to dump on the aboriginal social rejects
Altough they had a 60,000 year head start - the Celts, Romans, Jutes, Angles, Freisans, Saxons, Vikings, Danes, Normans all beat them to it,
and yet the poms never played the victim card but got on with business anbd became much stronger for it