If Comcast tries something like that you still have options.
You can get with other members of your community and solicit other providers to come to your community to provide competition.
If you community has is one that contracts with Comcast that gives them a monopoly on providing service to your area petition your community leaders to pressure Comcast not to prioritize their own PPV service. If they do not relent your community can contract to another ISP.
My home town has had at least 3 cable service providers that I can think of in the last 40 years. Your area is not stuck with Comcast. If you dont like them get involved and get rid of them.