Because romanticism and realism are completely different in expression, description object and profound ideological content. Since they are all different, how can they be compared together? Even if it's just a comparison, it's nothing.
First of all, there is no shortage of romantic and realistic works in every era. Even in the prosperous Tang Dynasty, there were romantic poet Li Bai and realistic poet Du Fu. There are representatives of romanticism and realism in every era, and I think they complement each other.
Qu Yuan and Li Bai, the representatives of romanticism we know, are among the best, and their works have a great influence on later generations. Their poems are magnificent, imaginative and loved by everyone, so even now, we still read their poems. Their works are timeless classics.
But realism also had a great influence, and poets mostly expressed the social situation at that time in the form of poems. In the Tang Dynasty, when poetry was the most popular, Du Fu's poems truly and meticulously described the social environment at that time. His poems, also known as the history of poetry, are also of great historical research value.
So familiarity is lighter than familiarity, and both romanticism and realism have made great contributions to literature.
If our literature is only romanticism or realism. Then the pearl of literature will not be so dazzling. Therefore, whether romanticism or realism, their contribution to literature is enormous.