Lately I have heard a lot about the ethnostate and I have been giving it some thought.

First of all I think it is important to distinguish between ethnostates that already exist and are simply preserved in their current form by peaceful means and ethnostates that do not yet exist but could and which violence may be used to create. These are different things.

Japan for example is one form of an ethnostate. It exists now. It is preserved in its current form by means of restricting immigration. Its existence is also relatively uncontroversial. Large groups of people are not calling upon Japan to disband itself because to exist as an ethnostate is wrong and it must be ethnically diverse (or at least open to ethnic diversity) in order to exist as a moral sate. I do not imagine anyone would advocate the use of violence to force Japan to accept ethnic diversity.

However Richard Spencer's America does not exist now. You might say it is the potential ethnostate where Japan is the kinetic ethnostate. Japan exists and is in motion through time and space now where as the ethnosate dreamed of by Spencer and his fellow travelers exists only in the realm of ideas and may potentially come into the physical world. Unlike Japan this ethnostate is extremely controversial. It's right to exist is disputed and many would advocate the use of violence to prevent such a state from existing.

That raises the question; if one could create an ethnostate on Mars, which is entirely uninhabited, and all those of a specific ethnic group who wished to live on the Martian ethnostate could be magically teleported there to live surrounded by their group under their own flag, would that be morally wrong?

I suspect not but I'm interested in hearing opinions on the matter, especially arguments that object to the Magical Martian Ethnostate.