After Liliuokalani's attempt to put forth her own constitution J.L. Kalulukou changed his mind about her after her attempt at power grabbing. Kaulukou was the Speaker of House of the Republic of Hawaii at the time of annexation. As Kaulukou told the San Francisco Chronicle on July 28, 1898, "I regard Annexation as the best thing that could happen for Hawaii, both native and foreign population. I have advocated it ever since it became an issue in political politics and I rejoice heartily that it has come. For years I have looked upon it as being, if not inevitable, at least as the only way in which the best interests of Hawaii could be protected and advanced". 
So, here is a Polynesian-Hawaiian, Speaker of the House, (which was dominated by Polynesian-Hawaiians) saying annexation was best for all.
A lot of previous supporters of the Monarchy lost their favor for it as Liliuokalani's failed attempt at a counter revolution showed, (she could only get 175 men to participate).