Sure, in some areas the lack of ISP competition is particularly acute. But on the flip side, lack of competition in tech is a nationwide problem. I’ve got gigabit through both Verizon and Comcast at my house. It’s much easier for me to switch between the two than for me to switch off gmail (which has years of my emails), or to switch off Facebook (which all my aunts and uncles use).
As to cellular—it’s a viable alternative for lots of people. Many people don’t need more than 10-20 hours of high quality video per month. 20% of people are already smartphone-only users, and that figure is growing. At the same time, those data caps are growing. Verizon’s 5G service has no data cap. Even if there is a soft cap of a few hundred GB, that’ll be a viable wired replacement for most people.
The trend in tech, by contrast, is the opposite. We’re not on the precipice of increased competition in search or mobile OSs. Indeed, with Microsoft throwing in the towel on Windows Mobile, there is less competition in that space than ever.