your house is also a literally a pile of unengineered garbage. like most US homes, it was both designed and built by idiots. Maybe you should buy a better house with adequate air sealing, insulation, and a design that at least made a small attempt to minimize direct solar gains. Guess what, its even cheaper to build houses intelligently. But when you sell products to idiots, the quality doesn't matter and instead you get expensive 50kBtu/hr machine to cool it and piss away extra money to the utilities.