The problem with this is that consumer Internet access is priced based on the assumption that it will be "bursty". Heavy users are subsidized by light users, both on a moment-to-moment basis and overall.
Reselling consumer-level Internet access to means you're taking away the users that would otherwise be subsidizing your service (because they're buying from you instead) while still expecting the local ISP to shoulder a large share of the costs for bringing your packets to their final destinations.
That issue goes away if you pay for a dedicated line (IE, explicitly contracted reserved bandwidth) to an IXP or place somewhere will sell you bulk transit, and you're paying for that too. That's fine. The problem is with expecting to make a profit by being the ISP to your whole block, based on a $100/mo GBPS fiber drop.
Not to say that the ISP mono/duopolists aren't loathesome--excessive market power is the root of... not all, but lots of socio-economic evil. The economics of telecommunications is complicated.
Reselling consumer-level Internet access to means you're taking away the users that would otherwise be subsidizing your service (because they're buying from you instead) while still expecting the local ISP to shoulder a large share of the costs for bringing your packets to their final destinations.
That issue goes away if you pay for a dedicated line (IE, explicitly contracted reserved bandwidth) to an IXP or place somewhere will sell you bulk transit, and you're paying for that too. That's fine. The problem is with expecting to make a profit by being the ISP to your whole block, based on a $100/mo GBPS fiber drop.
Not to say that the ISP mono/duopolists aren't loathesome--excessive market power is the root of... not all, but lots of socio-economic evil. The economics of telecommunications is complicated.