Those were real planes, with real passengers on board who were killed, with real flight tracks on radar. And real residue, what little could be recovered. Your claim is an utter fantasy, making no sense whatsoever. Tungsten alloy would have no use under these conditions; the full airplane had plenty of mass and momentum to penetrate into the building.

You are an example of what a paranoid obsession can do to a mind, because your fantasy requires even more complex cover-ups and furtive maneuvers to hustle all the passengers off into obscure and secret lives---even though plenty of people were killed on the ground---where absolutely no one reveals the secret. It never stops. And you don't have any self-awareness that this obsession is not an "awakening," but a dreadful yet fondly-cherished nightmare. You want it to be true. You want it to be true so badly that you will vehemently reject reality.