If the majority of Polynesians apposed Annexation Mary, it begs the question: Why would they continued to elect Polynesian candidates that were?
"Be it resolved, by the Senate and House of Representatives of the Territory of Hawaii, that the Congress of the United States...is hereby respectfully requested to pass an Act enabling the people of this Territory to meet in convention and frame and adopt a State Constitution where under this Territory may be admitted as a State into the Union".  This was the first action of the 1903 Hawaii Legislature, adopted unanimously by the Senate and Polynesian- Hawaiian dominated House, and delivered to the U.S. Congress by our elected delegate to the U.S. Congress by Polynesian Prince Kuhio Kalaniana'ole. 
Again,  if the Polynesians of the time in Hawaii were against being part of the U.S. they had a funny way of showing it!  Only a couple years after annexation they wanted full statehood.