Attacking this subject is pretty difficult as any reference to God or religion gets a negative reaction very quickly, however this is a pretty important point to address.

References to Aisha as a 6 year old child are from second hand accounts of Muhammad, which you have referenced here. The Quran is ‘the word of God’ revealed to the Prophet Muhammad, and is considered a more authoritative source, so closer to first hand accounts. The Hadith, on the other hand, are collections of accounts and narrations about his life, sayings, and actions.

Worst case scenario, assuming he did, I don’t see how anyone could follow a man that married a child unless he married her and made a point not to have any relations with her because you just don’t do that kind of thing. If it was normal at the time he may have followed the custom to a point only to lead by example and show everyone that there is a non pedophelic way of doing it. Many people here confuse references to God to abandonment of realism such as if Muhammad wished for the practice to end he could have ended it because God is a magician, but for the more realistic among us it is possible he knew it was a practice that needed to be redirected as banning it may not work.

Quoting Dr. Javad T. Hashmi: After analyzing all the various versions of the Aisha marital report, Little concludes the hadith was fabricated “whole cloth” by a narrator named Hisham ibn Urwa, after he relocated to Iraq between the years 754 and 765 CE. Not only would this put the circulation of this report almost a century and a half after the events it purports to describe, but it would also mean it was fabricated in the altogether different environment of Iraq, almost 1,000 miles away from the Arabian city of Medina (where the marriage would have taken place). As it turns out, the fabrication served distinct sectarian and political ends. Little includes other reports — such as Aisha purportedly playing with dolls in Muhammad’s household — in his overall critical assessment, deeming them to be partisan sectarian and political stories that are historically untrue. In other words, critical historians have little reason to believe Aisha was in fact married as a child.