That really wasn't my question, but more along the lines of what if they add the abortion channel to the base package that everyone has to have. You obviously wouldn't watch it (I'm not sure who would), but would you still keep your subscription?
As I noted before, I think this issue is very similar to the people who got all upset and quit watching the NFL due to a few players kneeling/protesting during the National Anthem. They could easily not watch the initial segment of the game (although, IINM they aren't televising the anthems any more), but choose to boycott the NFL entirely as a protest. That is the exact same thing as the people who are cancelling their Sirius subscriptions as a protest to Bannon. They could just as easily not tune into the channel.
Personally, I really don't care what is showing/airing on channels I'm not watching.