Earlier quoted context omitted.
So they're leasing ("buying"?) fiber from the same ISPs they're trying to displace and relying on that payment to provide them with continued internet access? This doesn't sound like a real first-class ISP, but something akin to an MVNO where they're at the mercy of the same companies they're competing with. I get the initial sale might seem fine, and the established ISPs might be fine with this as long as the compan…
Because it's all business to them, and if they did it overtly they could get sued. But also because once you're in a single location, you can pretty easily get multiple providers to that location for a Price, so there's really no point. Even small rural towns usually have multiple internet connections from different companies, and if they don't you can pay to run fiber if you really wanted to. People find it hard to…
Comcast would much rather sell a dedicated fiber to a business with capital and guarantees.
Selling to the individual consumer doesn't make a lot of sense business-wise, because of the deployment costs and continued support costs.
Comcast is also abusing their status as oligopoly to gouge costumers financially and qos-wise, but if they're selling to a business that buys large quantities and has staff who's job it is to handle network problems, they actually like that (right up until that business threatens to compete with them in areas where said oligopoly is in place, of course)