Well we are forced to coexist with different gameplay styles, the fact one doesn't see another player doesn't mean they do not share the same galaxy. Don't try to bend this thing with smart words, you have not enough about that, especially not as smart as you think they are.
So I am confident you will ask for a Open Only Galaxy from now on! You said it! Not me!
Ok I will rephrase: every successful MMO is founded on meaningful PvP. And almost every other MMO is far more successful than Elite Dangerous sadly, and that's so unfair considering the unexpressed potential of Elite Dangerous. Just check Steam data for example, unless you don't claim that the vast majority of Elite Dangerous players deliberately aavoid the most used game online retailer for whatever reason... maybe just because it's useful to somebody's reasons?