Paul W. answered 05/22/19
Dedicated to Achieving Student Success in History, Government, Culture
I don't know what the attitude was of either the Government of Imperial Japan or of the general Japanese public towards the Japanese people living on the islands of Hawaii, or anywhere else for that matter. You may be able to find the answer to your question in John J. Stephan's Hawaii Under the Rising Sun: Japan's Plans for Conquest after Pearl Harbor. Honolulu: University of Hawaii Press, 1984.
I don't know that I would characterize Japanese immigration to Hawaii in the 19th century as 'Colonization.' A 'Colony' in the political context is a territory, often geographically separate from a specific 'Colonial Power' / 'Mother Country' (an overseas colony), that is in the possession and under the control of the Colonial Power in question.
Whether or not the Japanese Government ever contemplated seizing Hawaii in the 19th century, up until 1898, when the United States annexed the Hawaiian Islands, Hawaii was a sovereign nation-state ruled by a monarchy.