Riis's sincerity for social reform has seldom been questioned, but critics have questioned his right to interfere with the lives and choices of others. His audience comprised middle-class reformers, and critics say that he had no love for the traditional lifestyles of the people he portrayed. Stange (1989) argues that Riis "recoiled from workers and working-class culture" and appealed primarily to the anxieties and fears of his middle-class audience. Swienty (2008) says, "Riis was quite impatient with most of his fellow immigrants; he was quick to judge and condemn those who failed to assimilate, and he did not refrain from expressing his contempt." Gurock (1981) says Riis was insensitive to the needs and fears of East European Jewish immigrants who flooded into New York at this time.