Southern slave owners fight against the northern industrial bourgeoisie reunification rule. This rule was hampered because the development of capitalism in the United States. However, people who call for democracy pay a lot for the victory of the southern states.
Southern slave owners fought against the northern industrial bourgeoisie and reunified the rule.而且我觉得句中的However应该改成so.因为第二句提到新制度由于美国资本主义的发展而受到阻碍,所以渴望民主的人们为southern states的胜利而付出
