The Allied powers refused admittance to Jewish refugees before Hitler's launch of the Final Solution due to a combination of factors, including anti-Semitism, economic depression, and fear of foreign influence. Many countries had strict immigration policies in place and were reluctant to accept large numbers of refugees, particularly during a time of economic hardship. Additionally, there was a widespread belief that Jewish immigrants would be a burden on the economy and would not assimilate into society. Finally, there was a fear of foreign influence and a desire to protect national identity, which led many countries to close their borders to immigrants.