For the record, I am of Chinese, Ukrainian and German descent. Although there are Native Hawaiians in my family, I am not.
It was mostly American sugar planters behind the overthrow of the Hawaiian monarchy. Among their supporters were some Native Hawaiians and a bunch of Portuguese (this not well known) immigrants. The U.S. has said their military was there only to protect American citizens, but recently discovered documentation discloses otherwise.
The Republic of Hawaii was established after the fall of the monarchy followed by annexation with Hawaii becoming a U.S. Territory. Hawaii overwhelmingly voted for statehood and 1959 Hawaii became the 50th state.