DuBois felt that renouncing the goal of complete integration and social equality, even in the short run, was counterproductive and exactly the opposite strategy from what best suited African Americans. His group was denounced as radical by most whites at the time. Educated African Americans, however, supported the resolutions.
Island hopping is the U.S. strategy against Japan in ww2. By taking important Pacific islands and building military bases on those islands, the U.S. slowly advanced towards mainland Japan and prepared for invasion.