Yes this is very true.
However intellectual brilliance should not be confused with the ability to recall numbers and dates.
I hope you see the difference.
BTW our brains may be wired slightly differently for men vs. women. But that should not be construed as woman being “dum#”.
No at all.
And suppose a financial contract was drawn and only one witness and that being a woman was available. Well she needs to be mindful about the future repercussions and take good notes. But then the same suggestions should be made for male witnesses too.
The idea is not to prove or disprove Quran, or disrespect women.
The idea is to do our best to understand the intent of Allah swt without mocking it (nauz billah), and without using it to abuse women. After all every man is born from the womb of a woman aka his mother. then how could we expect Quran to put down our mothers?
The fault is not with the book, but with our interpretation.