I agree, it's a problem of a larger scope. But do you think it has to be like that because of biology or any such reason, or do you think it's a result of historical and social factors?

Some people think it might be worth to sacrifice a little so things might get a bit better in the long run, and that every small step counts to be welcoming to anyone.

Edit: Note that I ask for either or in the first paragraph because I believe the latter would be a more easily fixable scenario than the former.