Probably built with UAE government oil money.
They don't have to be profitable.
The buildings serve no purpose except to salve the Arab/Muslim
inferiority complex concerning their respective societies' technical and social backwardness when compared with the Western World.
Do you notice that these great Arab/Muslim oil money men use foreign and/or non-muslim firms, experience and technology to built all these wonderful pie in the sky phallic dreams that they have? If muslims are so great and have contributed so much to civilization, wouldn’t you think they may have muslim architectural and construction firms who could handle these projects? (do I need an irony alert here?)
And from what I have heard, most of the construction is done by foreign or imported labor, since the inbred muslim morons really only know how to tear things down, not build them up.
But as long as it make them think they look great to the rest of the world. LOL For the most part, I think the civilized world giggles politely behind their hands at the muslim pretentiousness and actual lack of any constructive abilities. Having money pumped out of the ground by non-muslim oil companies (using non-muslim technologies) isn’t really much of an indication of ability or intelligence.