How long do you think these networks take to pay off? OpenServ is very different, as their build model and their capital requirements are vastly different to all the other FNOs. It takes decades. While these companies have to service their debt, keep reinvesting in their networks and rollouts (customer churn and depreciation is a real thing) they are subject to the same inflation as you are. FNOs are also complex businesses that require scarce skills and resources. Do you think running these networks is cheap or that these costs are fixed?
How long do you think it takes to pay back just the direct costs to install your fibre link i.e. the costs of your access built, ONT, router and installation? Tell us how long you think it takes. Now, when you have that figure in your mind, consider what it costs to build the core network and run it. When is it acceptable in your mind for FNOs to start making money? From year 2? Year 5? Yeah 10? Now, tell us if you were a business owner would you run a business if you were not getting returns for years after risking your own capital?
Another question: what do you think the cost of capital is? 5% 10%? 20%? If you do not understand why this is relevant, suggest you sharpen your financial skills and use ChatGPT to give you a quick lesson.