All Hogg and others like him have to do is show us the deeds of those people who had their land stolen.
Let's be honest. American Indians, like the Sioux, were primitive hunter-gatherers who took other Indian tribe's land when they could. They frequently engaged in warfare to acquire or keep the land they dwelled on at the time.
Furthermore, despite the ravings of leftist historian revisionists, there were probably at most 2 or 3 million Indians above the Rio Grande when the first European settlers arrived. Hunter-gatherers cannot have large populations. Only countries with large permanent populations who stay mostly in one place can create the conditions necessary to have large numbers of people.
In short there was plenty of land with small groups of people scattered hither and yon. Plenty of room for everybody.
If Hogg and others don't like living here, they're free to go back to Europe or wherever they came from.