The point is a TOTAL collapse of a steel framed highrise has NEVER happened in history, due to fire.
In around 100 years it never happened, but yet on 9/11 three collapsed all on the same day.
And also a stupid daughter banging statement, lets use that argument starting in the stone age to prove nothing substantial occurred since.
Dr. Pal Chana of the British Cement Association demonstrated the relative likelihood of floor collapse in a steel versus concrete framed building, using the vivid example of the Madrid Windsor Tower fire which raged over 26 hours on 14-15 February 2005. This former landmark office block of 30 storeys featured a concrete core throughout, but with concrete columns up to the 21st floor and steel columns between the 22nd and 30th floors. Remarkably, despite the intensity and duration of the fire, the concrete floors and columns remained intact however, the steel supported floors above the 21st floor collapsed, leaving the concrete core in-situ and exposed.
So what does the Madrid Windsor Tower fire show? That steel columns will collapse in a fire, that concrete is more fire-resistant, and, uh, thats about it.