The existence of a restricted marketplace doesn't mean the greater internet must become just like it, as if through some kind of relative application of logic.

The existence of a restricted marketplace doesn't mean the greater internet must become just like it, as if through some kind of relative application of logic. The internet--and the real world in general--can host a million restricted marketplaces, each designed for specific interests--and still be free in general. Your reductio ad absurdum is suggesting that the presence of a gated community in the Hamptons means that every neighborhood ought to be gated.