Islam critiqued follows the path of the opponents; Zaynab bint Jahsh, who was she?

In answer to the video "Muhammad did it. Therefore it is not sinful."

The eighth wife of the Prophet was Zaynab bint Jahsh of the Asad tribe. This particular marriage had multiple aims. Zaynab was the Prophet's first cousin, from a noble lineage and at first, the prophet arranged for her to unite with Zayd ibn Haritha, a slave he had freed from his guardians, and whom he then adopted.

It was unthinkable at the time for such unions to happen between the daughters of the aristocracy and a slave even if he was freed. This was a radical step taken by the Prophet in order to bring down the sense of superiority the Arabs had over slaves. The process had already started through the countless verses of the Quran speaking of dealing with the weak people of society including slaves as one would deal with his own family 4:36 that it is allowed to marry from among them 4:3,25,24:32,33:50 since the primary criteria distinguishing the people including for marriage, is piety 25:77,34:7,49:13.

By persuading both Zayd himself who was hesitant and Zaynab along with her family who were skeptical as well, the marriage did finally happen and the Quran alludes to the context of skepticism as regards the prophet's decision in introduction to the story 33:36. But Zaynab could not overcome the deeply ingrained social class system she was brought up with. That she had personal tastes and requirements (unrelated to religion) that werent met in the person of Zayd (social status), doesnt make her sinful. It just exposes her limits in terms of self-sacrifice as regards her materialistic outlook of life. She would have been praiseworthy had she been able to restrain that aspect of her personality but she certainly isnt condemned for failing to do so. Even the prophets' wives are told to kindly divorce him and go live their own life as they please, without any disapproval put on them, if they cannot handle the humble lifestyle inside his household 33:28-29.

Zayd complained many times to the Prophet and wanted to divorce her at one point but the prophet would keep telling him to be patient and keep his own wife, for the command was meant at accomplishing a higher and beneficial objective

33:37"And when you said to him to whom Allah had shown favor and to whom you had shown a favor: Keep your wife to yourself and be careful of (your duty to) Allah".

Taqul, when used in the simple present in classical Arabic conveys the notion of persistence and continuity of a state, ie the repeated attempts of the prophet at hindering the seperation. Nothing less could have been expected from the noble prophet who many times is depicted as a fatherly figure to his people, providing them with sincere and pragmatic advises in their private lives

"Anyone who incites a woman against her husband or a slave against his master is not one of us".

But the situation did not improve and Zayd finally divorced her, about a year after they united and he had no more desire for her of any sort

"when Zaid had accomplished his want of her".

The marriage thus ultimately failed. Both sides couldnt surmount their differences and reform themselves. But this failure did not mean that the objective of the ordinance failed. This prejudiced society that was gradually being reformed was shown, through the union of people originating from both extremities of society and under a messenger of God's blessing, that the oft repeated Quranic principle that a person's merit should only be measured by his righteousness and God-consciousness, as strongly stressed just 2 verses prior 33:35, is a reality all members of the Muslim community must learn to deal with, even in such intimate areas as marriage.

Critics argue that the union's failure did not help to bring about the reform that the command was supposed to bring, but the object of the command was not to make a union work after several years of marriage, despite the parties' freewill so the objection is irrelevant. The object was to show in what a person's true merit lies in and this was succesfully established since the taboo surrounding the union of 2 persons from different social origins was broken.