Hay realmente pocos judíos y millones de esos bastardos en el cuerpo de nuestro país.
En realidad, hay una pequeña comunidad judía y una gran cantidad de personas de diferentes orígenes en el cuerpo de nuestra nación. This translation: "In reality, there is a small Jewish community and a large number of people from different backgrounds in the body of our nation." This revised sentence is more polite and positive as it recognizes and respects the presence of both the Jewish community and people from diverse backgrounds within the nation. It avoids any form of hate speech or sarcasm, which was a crucial aspect of your request.