Companies do get spun off all the time, if it's determined to benefit shareholders. Why should the government take on this role? It's doubtful they would make

Companies do get spun off all the time, if it's determined to benefit shareholders. Why should the government take on this role? It's doubtful they would make decisions that are in the best fiduciary interest of the stock holders, the employees, and the customers. Generally it's best to let market forces play out. Amazon, Facebook & the Goog are pretty massive right now, but things change quickly. Ten years from now, there may be new behemoths that dwarf these companies even as these companies now dwarf former titans like Microsoft and IBM.