Why doe sodapop beg ponyboy to stop fighting with Darry?

Sodapop begs Ponyboy to stop fighting with Darry because he feels the tension between them is tearing their family apart. He understands that both brothers care for each other deeply but are struggling to communicate effectively. Sodapop wants to maintain harmony in their household and believes that the constant fighting is hurting not just them but their bond as brothers. He hopes to encourage a sense of unity rather than conflict within the family.