1. Blacks will be given citizenship and white rights will be reduced.
He states at the beginning the intent of Lincoln to give blacks citizenship, the right to vote, and make them equal to whites which in turn Douglass argues will reduce the rights of whites.
2. Douglass believed that blacks were not an equal race to whites and therefore were incapable of citizenship and equal rights to white men.
He believed, as many did at the time, that race was biological and each race was inferior or superior to another. He believed whites from Europe were the superior race to all others and therefore should have the rights guaranteed by the American government.