Yes, but that inherently dilutes the very conception of a group. This is pretty basic stuff. Groups must be exclusive or they have no meaning.
I understand this will make some people sad and, unfortunately, that's okay.
It makes me sad that I will never be Japanese. What a beautiful country. Man, am I sad. But that's alright, isn't it?
Why does it matter where I live?
I need only simply desire to live somewhere and be something and my wish should be granted lest I be sad, which the Japanese must obviously take very, very seriously. They must ensure I am not sad.
In fact, the comparison is even more apt because it becomes more obviously absurd.
Being an American, for instance, should not exclude anyone who wants to be a part of the group, and the only folks suggesting it should typically have one or two groups they specifically want excluded. That is obviously not all right, however much you’d like it normalized.
Also, accusing people of being intentionally dishonest isn't some good-faith observation, it's a personal attack and shouldn't be allowed unless you can substantiate your claims, which you cannot because they are baseless. People who do this dined out for far too long on being able to silence people with implications.