What is the ruling on a woman disliking polygyny due to natural jealousy, knowing that Aisha (may Allah be pleased with her) experienced jealousy, and is such a dislike of a legal ruling considered disbelief?

A woman's jealousy over her husband is an inherent, natural trait. A person's dislike for something permissible does not harm them, as long as they do not dislike its permissibility. A jealous woman does not dislike the permissibility of polygyny, but rather dislikes the presence of another wife alongside her, and there is a clear difference between the two matters.