You answered your own question “Now it’s just garbage corporations turning a quick buck for executives and shareholders” executives must continually find more profit to appease the shareholders, the only way to do that consistently is raise prices, there are too many people that will just keep paying and paying and the corporations know it.
Anything that is not AT&T, Verizon or T-Mobile will most always rely on one of these three and their towers. Which means you will be deprioritized for their customers. There are some smaller companies that have their own towers but they are few and far between and cover a very small area. Google Fi for example, uses the T-Mobile network and a smaller network that only covers a small patch in the Midwest somewhere.
This… I also would love for all of this to happen but a name change is a must.