Hitler was a very good student. Those who read Mein Kampf will find therein many good words about America. More precisely, not about the whole of America, but about the numerous attempts of the American socialists to change the foundations of the American way of life.
The ideas of forced sterilization and forced abortion were adopted by Hitler from the founder of feminism, American socialist Margaret Sanger. Madame Sanger even founded a special clinic to promote mass abortions of black people to reduce their number with the aim of completely eradicating blacks in America. This organization still exists–it is called Planned Parenthood.