In the beginning, Wākea created the Kapu system. There were two types of kapu with the first being the ʻAikapu. The ʻAikapu separated man from woman when eating. It also restricted the kinds of food women ate.
If you wish to continue to observe my father's laws, it is well and we will not molest you. But as for me and my people, we intend to be free from the tabus.
The second type of kapu was the personal kapu of the aliʻi. These kapu were the rules that the commoners had to abide by when in the presence of aliʻi.
The tabus are at an end, and the Gods are a lie!
All of this changed several decades after James Cook's arrival to the Hawaiian islands. When the foreigners started breaking the kapu (via the men and women eating together) no one was punished.
Can these be human beings! How dark and comfortless their state of mind and heart! How imminent the danger to the immortal soul, shrouded in this deep pagan gloom! Can such beings be civilized? Can they be Christianized?
Eventually, Kaʻahumanu had started breaking the ʻAikapu with Liholiho following suite a while later.
Once the king had broken the kapu, other chiefs started to breaking the ʻaikapu as well. This lead to the destruction of the wooden Akua by orders of the king. From Hawaiʻi to Kauaʻi, all of the wooden Akua were pulled down and burned.
Five months after the end of the kapu system, American Calvinist missionaries came to Hawaiʻi to present their own beliefs. These missionaries were extremely repressive as their beliefs were almost the exact opposite of the Hawaiian religion. In the end, the missionaries imposed their own beliefs onto Hawaiians to "save" them.