Many hated the towers for the same reasons many hate the space program
As Tom stated:
"There are many schools of thought on this, and I don't know exactly what should go there either. But I do know one thing: ...kick out the bastards who hate anything that rises above other things, and despised the idea...not because there was anything objectively wrong with [it], ...but because [it] symbolized achievement, mastery of the elements, human skills, and a wealthy civilization..."
Many hated the twin towers and/or the space program precisely because it proved that mankind was capable of "mastery of the elements". (where do humans get off acting so God-like)
Scott