blud its stated a ton of times in many hadith collections amongst these some of the most reliable ones Bukhari, Muslim and also Sunan Abi Dawud and Ibn Majah, all 4 of these being part of the 6 books, 2 of these being considered sahih and the most important hadith collections for Sunnis, which make up 87-90% of the Muslim population.
Across these hadiths its stated many times specifically, that the prophet married aisha at 6-7 years and "consummated" her when she was 9, the fact that aisha is said to be young is supported by some hadiths narrating that she played with dolls, yes women can play with dolls too but its much more likely for a small child to be doing so, especially during that time.
I would be willing to believe the "it was a mistake" claim if the marriage and consummation was stated in 1 hadith but its stated several times which makes it seem very unlikely for me that it was just a retarded confusion.
Most of the sources ive seen you provide are much weaker and unlike hadiths didnt have the rigorous verification of chains of narration, if im not wrong i think once you mentioned something about Al-Tabari as one of your sources, but didnt this guy prioritize the collection of historical narrations without verifying their authenticity? making his book a mix of Sahih, Daif and even fabricated narrations.
i dont know man, it just seems pretty unlikely to me that she was 18 with all of this evidence
the fact that Aisha was 9 at consummation is still traditionally accepted by most scholars and sunnis either way