“My objection: Even though I totally agree with Brother Shabbir's translation and interpretation of Verse # 4:3, how do we use this Ayat to declare polygamy under normal conditions haram? In my opinion, we can do this if we produce a parallel example from the Quran that declares something Haram as Halal under certain conditions. If there is any such example, please point out to me so i may correct my views."
Look at the folloiwng verses of Qur'an
عَلَيْكُمُ الْمَيْتَةَ وَالدَّمَ وَلَحْمَ الْخِنزِيرِ وَمَا أُهِلَّ بِهِ
لِغَيْرِ اللّهِ فَمَنِ اضْطُرَّ غَيْرَ بَاغٍ وَلاَ عَادٍ فَلا إِثْمَ عَلَيْهِ إِنَّ اللّهَ
2:173 He has forbidden you: dead meat (carrion), blood, swine-flesh, and anything (not just meat) that has been dedicated to other than God (be it a person, an idol or a tomb 5:3). But if one is forced by necessity, neither intending disobedience, nor exceeding, it will not be a violation that hurts his own ‘self’. Indeed, God is Forgiving, Merciful.
إِنَّمَا حَرَّمَ عَلَيْكُمُ الْمَيْتَةَ وَالْدَّمَ وَلَحْمَ الْخَنزِيرِ وَمَآ
أُهِلَّ لِغَيْرِ اللّهِ بِهِ فَمَنِ اضْطُرَّ غَيْرَ بَاغٍ وَلاَ عَادٍ فَإِنَّ
اللّهَ غَفُورٌ رَّحِيمٌ
16:115 He only prohibits for you the dead animal, blood, and swine-flesh and anything that has been dedicated to other than God. In a forced situation, provided one doesn't exceed the necessity, remember that God is Forgiving, Merciful.