To what extent do parents have the right to choose their son's life partner? What is the ruling on their forcing her to marry someone she does not desire? And is she entitled to refuse that?

For a marriage to be complete, the consent of both spouses is required. Parents do not have the right to force their children to marry someone they do not desire. However, if the spouse chosen by the parents is righteous, the son or daughter should obey them, unless there is a confirmed harm that could lead to separation. In such a case, obedience is not obligatory, and he or she is not considered disobedient if they refuse.