I think you'd find that Māori are doing OK. Better than Pacific Islanders.
But yes, there's hard-to-reach people in every ethnicity. What I've enjoyed is the orgs who are vaccinating Māori and Pacific Islanders - always tell the community to come along even if you don't fit in either ethnicity, you'll still get a jab. I just love that. It's the way it should be!
We're all people, let's look after each other.