Final answer:
American Romantic writers rejected rationalism because it limits imagination and emphasizes logic and reason over emotion and individuality.
Step-by-step explanation:
American Romantic writers rejected rationalism because they believed that Rationalism limits imagination. Romanticism valued emotion, imagination, and individuality over logic and reason. Romantic writers believed that embracing the imaginative aspects of human nature would lead to a deeper understanding of the world and the ability to express thought and feeling authentically.