How do you figure that?
While it is true that kerosene (aka "jet fuel") burning in open air will not get hot enough to melt steel, it will raise steel to the curie point, but that is not the case here. Remember that in order to withstand the temperature of the burning kerosene, most steels are not good enough so many turbojet and turbofan components actually utilize titanium and in some cases tungsten(!) alloys in order to resist the heat, because in a forced-air situation kerosene gets hot enough to vaporize steel.
What you have is many thousands of pounds of kerosene which in open air will soften or even melt kerosene, which dissolved or at least softened many plastics in the building (styrofoam insulation and ceiling panels, PVC insulation in cables, plastic office furniture, plastic carpets, etc.) and those plastics also ignited, not to mention cellulose-based materials (wood, paper) which burns quite hot.
Add in the fact that the towers are structures with very tall vertical shafts distributed throughout the middle portion of the towers (stairwells, elevator shafts, etc) you have created a huge convection situation, which was fueled [sic] by the raging inferno, which only served to add more oxygen to the combustion process causing the towers to form a crude jet engine - as the fire got hotter convection increased, which only added more oxygen to the combustion process. Now, remember that most airliners are mostly aluminum, commercial buildings use a mix of aluminum and steel (aluminum for non-structural studs in partitions, frames in drop ceilings, etc) so that liquified aluminum would come into contact with melting steel and form thermite, making the combustion even hotter, especially with the humongous amount of convection going on.
Ergo, it's no problem to arrive at the conclusion that yes, those planes did in fact cause those towers to implode, and probably could have been predicted beforehand. The planners of that attack were certainly sociopathic and deluded, but definitely not stupid and probably had expected the towers to come down the way they did because of the reasons I mentioned above.
I don't know why people point to kerosene burning in open, still air and say "kerosene can't melt steel" when the whole reason titanium and tungsten are used for jet engines is because kerosene when provided more oxygen absolutely will vaporize steel.
