Of course not, silly. There's no marginal cost to serve the next customer. All the routers, switches, HFC equipment, headends, STBs, servers, building space, power, space conditioning, service trucks, help desk personnel, techs, etc are all free.
I pay Comcast $60 a month to use their internet service, five times more than I was paying a decade ago. At this price, they should be able to find a way to pay for the infrastructure.
Good point. And all those things cost Comcast twice or thrice as much as they would cost you if you went out to buy them!