Why do maori fail at being christian?

Christianity is a Pakeha (non-Maori) religion but Maori do not fail at it; Maori like other Polynesians, are a deeply spiritual people. Many maori did embrace Christianity when it was first introduced to Aotearoa New Zealand. This was partly due to the attitude of Europeans who treated non-christians as little more than animals. Other Maori created their own syncretic religions that had a veneer of Christianity in order to protect their Maori beliefs which the Europeans wanted to stamp out. Maori in fact excelled at Christianity because Maori is an oral tradition where everything is memorised, so Maori were able to easily memorise the entire bible and thus engage in Christian theology very successfully.