That's because you're being reductive with the concept of both "homeland' and "race".
There is no "white homeland" in the same way that a Black American doesn't have "his homeland in Africa", because he's not from Africa, nor could it ever be his home, nor does any race have a home, because races of people can exist in any place.
The Boer's homeland is in Africa. They are not European. They are White, but that doesn't mean their homeland is the Netherlands. Removing the Boer from Africa would be displacing them from their homeland. There is no single homeland for the Boer and the Irish. They are different people.
That's because you're being reductive with the concept of both "homeland' and "race".
There is no "white homeland" in the same way that a Black American doesn't have "his homeland in Africa", because he's not from Africa, nor could it ever be his home, nor does any race have a home, because races of people can exist in any place.
The Boer's homeland is in Africa. They are not European. They are White, but that doesn't mean their homeland is the Netherlands. Removing the Boer from Africa would be displacing them from their homeland. There is no single homeland for the Boer and the Irish. They are different people.