Yes, you're plainly wrong. All Starlink customers may point to why.
The point doesn't seem to stand?
Also, at 100+Mbps, this is the first generation of the technology. Is it feasible that they hit 1Gpbs by end of decade? I wouldn't rule out the possibility.
Hell would freeze over before Musk would even dream about making a philantropic service for poor people, because that's what you are describing. The poorest of the poorest in the next 50 years will be the last 10-20% who for whatever reason remains stuck in the badlands as opposed to moving to the urbanized world
Starlink satellites spend a lot of time flying over Africa. And if it's priced at $110/month it will not see a lot of use. So for a very low marginal cost he can provide a very valuable service. Therefore I wouldn't be surprised if somebody talks him into giving it away for the next cause du jour, especially if its structured so he only gives away the service (low marginal cost) and not the terminals (high marginal cost).
DirecTV and Dish Network alone have over 30 million U.S. customers combined. Keep in mind Starlink has been engineered for portability unlike DirecTV and Dish. More than 11 million families own an RV. And 12 million own registered boats. How many own second homes? Starlink takes 2 minutes to setup and 2 minutes to tear down.
Back to residential service though. There are tens of millions of households that are limited by old copper lines that were never filled in or cable extensions that were never dug. Or if the cable does exist, it's still at slower speeds and certainly not gigabit. Relying on mobile isn't a great option as most services today still throttle speeds down to 600 kbps when exceeding 15GB a month (which is nothing these days).
But worldwide, including in all the BRICS countries and the global south that rapidly growing in GDP and global importance is about 2-3 billion people with varying levels of spotty, congested, unreliable internet. These communities are probably lucky if they have 4G in many cases. That market is worth hundreds of billions over the next few decades, even when adjusting for purchasing power. Easily.
And your assumptions about relative competitiveness vs the highest quality residential speeds (which are only largely available to people in dense urban cores) are perhaps one upgrade away from being achieved. They already solved the hardest problem with regards to satellite communication: latency. It will be interesting to see how far they can push the bandwidth at scale over the years.
If it's not DoD then it's military stuff from allies or Turkey, if it's not that then it's Starlink.
In any event the point still stands. This company only exists in the financial press and the tech press. Regular people aren't using SpaceX nor they ever will considering how the world is increasingly urbanised so sat-tv and sat-internet are dead on arrival matched against fiber and 5G. The only exception is maybe the yacht crowd but they aren't regular people.