I'm not going to quote your whole post because it is really long. However, you are forgetting another major cost in the wireless industry and that is building out the network. Again, you are pushing an ideal world where a carrier is going to get cheap spectrum, magically deploy that spectrum, and then pass on any savings to the consumer. As we have seen with Verizon and AT&T that likely would never happen. Plus it sounds like your plan is to get T-Mobile more spectrum at what really would be a disadvantage to the other carriers. Furthermore, leasing spectrum from the government? So basically you are going to put the government in charge of setting the price that they think is fair for the spectrum? A government that could at anytime increase the pricing of the spectrum? And I am sure that while they were at it, they might put other stipulations into a carrier using the spectrum they are leasing from the government. Does not sound like a win/win for the consumer.
Also more Asian companies would be selling their phones in the USA? I do not know if you have realized, but exactly where are your smartphones coming from? Apple is really the only major designer of smartphones in the USA and those are manufactured in China. Just about every other device you will buy is designed and manufactured in Asia. Regarding their technology in smartphones being so far ahead of us, what do you mean? The devices we are being shipped are their latest and greatest. And if our technology is so far behind, why is Apple still on of the more popular brands in the Asian market? Yes their networks may be fast, but again if you look at big cities that is the case. Go to a rural part of China and you will most likely be dealing with spotty service (oh and you will ALWAYS be behind the Great Firewall, since the government controls the internet and spectrum). One area where they are much further ahead is the adoption of wireless payment, something USA consumers are still more hesitant about. What phone do they currently have that you want? Huawei phones are not sold here most likely because the USA government banned them from bidding on government contracts for concerns of possible espionage. Also, it looks like they may have also violated some patents held in the US, but that is another sticking point.
Finally, most people do not want to upgrade once or twice or more a year. Techies and people that would come to sites like this do, but you cannot equate that to the average person. You are projecting your wants and desires among the rest of the customers. Most customers want a phone to text, have reliable data to stream music and video, and make a phone call. Most people do not know what a speed test is nor would they care. According to Apple's latest environmental report, they have seen the number of years a person will hold on to their phone from just over two years to now just over three years. This is a big change as people are now seeing the 'true cost' of a phone and not the standard $99-$299 upgrade price. Furthermore, imagine the sheer amount of waste generated if everyone upgraded their phones every 6 months. Not only would we be misallocating economic resources but the reselling market would most likely collapse as well. If everyone is buying the latest and greatest, who is going purchase your used device? The current leasing system is designed on the company being able to sell the phone down the line.
Also, have you not noticed the massive slow down in the tech sector? Things are pretty terrible right now in the tech sector. Apple, Microsoft, Google, Intel, Cisco, IBM, etc are in the midst of slowdowns. People do not seem to upgrading, worldwide, like they used to be. Most people feel their technology IS doing enough for them. I am a techie, so I always want more, but you have to be careful when thinking about YOUR wants compared to the average less technology-wise person.