Final answer:
Asian laborers were no longer allowed to immigrate to the Hawaiian islands as the sugar industry crashed and the Hawaiian queen sought to reclaim political control for native Hawaiians.
Step-by-step explanation:
In the Hawaiian islands, the group of people who were no longer allowed to immigrate were Asian laborers. The Hawaiian sugar industry, which heavily relied on American markets, crashed, leading to a rise in unemployment among Chinese and Japanese immigrants who worked in the cane fields and sugar mills. In response, the Hawaiian queen Liliuokalani proposed a constitution that restricted the political power of American planters in favor of native Hawaiians. This was an attempt to regain control over an island nation dominated by American planters and to ensure that the Hawaiian islands were for the native Hawaiians.