Objectiveness and Subjectiveness

Ibn Hazam, Al-Juwaini, and Fakhr Al-Din Razi were theologians who argued that islamic texts needed strict interpretation and any form of analogical thoughts or philosophical ones were anything but objective when it came to the issue of text interpretation. They were a form of literalists, who took each line of text to mean exactly what it said, because there should not have been any hidden messages in an open message, and so for all to be able to understand the divine message, this form of interpretation should be the one to go about. Any deep analogical thoughts on texts based on deep thinking were rejected.Most theologians were Ash'ariyya (Ash'ariyya is the foremost theological school of thought in sunni islam, they believe that reason must be subordinate to revelation, the other theological school is Mu'tazila whos members argue that it is necessary to give a rationally coherant account of islamic beliefs, their ideas were based on five main principles: Monotheisim/Tawheed, Justice/'Adl, Promise & Threat/ Al-Wa'd Wal Wa'eed, The position between the two extremes/ Al-Manzila bayn Al-Manzilatayn and finally enjoining good and forbidding evil/ Al-Amur Bil ma3ruf and Al-Nahi 'an il Munkar. For more info read here.) being Ash'ariyya meant that these theologians rejected the idea that ethical and religious ideas could be objectively true, their arguement was that something is true because God says its true and there is no arguement about that.This particular idea is seen in Islamic ethics, were a particular influence over rulings came into form, an arguement between objectiveness and subjectiveness forming, where some arguably reasoned that a particular action was just/correct/right If and only If God has said it is while others felt it was obligatory to question and think about each and every matter without submitting (negating the whole concept of submission in islam).Ibn Mishkawya and Al-Tusi have written accounts about the two conflicts (If someone knows a link to these accounts please could they paste them). The question here is that, should religious ideas be taken objectvely or subjectively? and if so how about them? Are the modern ethically correct ideologies the way they should be?