Again, you are not reading what I am saying. I am saying unequally in a way that is belittling/does not give justice to the wives. I.e. having one wife for the purpose of fulfilling sexual gratifications and the other as a mere maid. And you cannot say there are no marriages where the man does not give justice to his wifes. Even though polygamy is halal, if he does not meet the requirements of his duties, then he should not be having more than one wife. Simple as that. Some men think they all have the capacity to treat women with justice like Muhammad (pbuh) and the Imams (as), and quite simply, most do not.
Allah, the Almighty has declared in the Quran:
“…then marry [other] women, who seem virtuous to you, two or three or four; and if you fear that you cannot do them justice, then one [only]…”1
The point of the example was to show that people can have ill intentions and abuse halal practices with improper intentions. It would be as though you are marrying someone permanenantly with the intentions of eventually divorcing them. Permanent marriage is undoubtedly halal, but what if it is conducted with the intention that it will be eventually divorced? I am not saying the sanction itself is haram, but the intentions guiding and funding the motives are not halal.
Mut’ah With Christian And Jewish Women
The above, of course, is the general rule. However, what happens when the Shi’i man in need of mut’ah is unable to find a suitable Muslim spouse? Well, the Book of Allah has made certain concessions in this regard:
Today, the good things are made halal to you; and the food of those who were given the Book is halal for you, and your food is halal for them; and also (halal to you are) the chaste ones from the believing women and the chaste ones from those who were given the Book before you, when you have given them their dowries, taking (them) in marriage, not fornicating (with them), nor taking them as girlfriends.46
This verse is in the last revealed Surah of the Qur’an. As such, it is the last law of Allah on the issue of marriage with non-Muslim women, and therefore effectively modifies the previous rulings. So, while mut’ah with non-Muslims is ordinarily haram, our Lord eventually allowed us to marry those of them who follow a religion that once adhered to a scripture from Him. These are primarily Jews and Christians today. Therefore, the Shi’i man is allowed to wed a Jewess or a Christian woman in mut’ah, as long as the following conditions are fulfilled:
(a) she is unmarried and available for marriage;
(b) she is chaste;
(c) the purpose of the union is marriage and not fornication;
(d) she must not be taken as a girlfriend; and
(e) she must be paid her dowry.
Meanwhile, if the Shi’i man is able to find a chaste Jewess or a Christian woman who agrees to do mut’ah with him, there are still some other conditions which she must consent to. Al-Ṭusi reports:
Muhammad b. Ya’qub – Muhammad b. Yahya – Ahmad b. Muhammad – al-Hasan b. Mahbub – Mu’awiyah b. Wahb and others – Abu ‘Abd Allah, peace be upon him, who said concerning a believing man who seeks to marry a Jewess or a Christian woman:
“If he finds a Muslim woman, then what is he doing with the Jewess or Christian woman?”
So, I (Mu’awiyah) said to him, “He loves her.”
Then, he said, “If he does, then he must forbid her from drinking alcohol and from eating pork. And know that in his marriage to her, there is a blemish upon him in his religion.”52
Al-Majlisi declares:
Sahih.53
And al-Ruhani concurs:
Sahih54
http://www.al-islam.org/nikah-al-mutah-zina-or-sunnah-toyib-olawuyi
My point is that there are conditions to mutah, specifically with a Christian woman. And you cannot step all over the rights of Christian women and treat her like rubbish simply because she is not a Muslimah. Mutah is halal, but it has conditions.
All halal sanctions have some sort of conditions.