dave, i'm not sure (as a non-facebook user) if you get how facebook actually works. it's not an "open forum", as in anyone from who-knows-where can see what you do and comment. you have your list of friends that you invite and who you can restrict to see what you post. unfortunately, in this case, rkw is a friend of my friend who is posting this stuff. rkw can see and comment on anything that my friend posts, unless my friend does one of two things: a) create lists of people to filter who can see what... this is a lot of work and most people don't bother (maybe because most people don't have an rkw on their list lol), or b) defriend rkw.
my friend has done neither because he told me that he has compassion for rkw although he's a little different and he loves him in a christian brotherly fashion, and the first option like i said is just a lot of work. i can guarantee you that my friend isn't posting this stuff to be divisive, but rather to open people's minds if anything else. in fact, for you to assume that is what he's doing (not sure if you are, but saying things like "more responsibility" and "enjoys traffic" and such leads me to believe that you are) is solely to stir up sh!t is proof that you don't see how facebook essentially works.
yes, of course discussion happens. yes, of course sometimes it gets heated or even one-sided. but that doesn't mean once it does you have to go "zomg i'm outta here" and take down the page or cater your social media usage to those who are closed minded. i don't know if my friend has pm'ed rkw in the past, but he has pm'ed me a couple times and told me not to get into discussion with him. and on the most part i have, but there are times when i just want to talk about the topic with others but it gets derailed by rkw, in which case the discussion ends. but JUST BECAUSE THIS HAPPENS does NOT make it my friend's fault for posting things that are of interest, nor is it the fault of those who participated in discussion. in fact, i wouldn't even say it's rkw's fault in derailing with his nonsensical babble. rather, it's just what happens in organic discussion. sometimes it ends well, sometimes it doesn't. to control (or even feel the need to control) the end result of the discussion (imho) causes it to cease being a discussion. rather, it's just a front to manipulate others to think what you think.
this is in no way promoting these facebook discussions, however, i do enjoy them when they are civil and well thought out (unlike the rkw ones). but i do say all this in defence of my friend who isn't here to defend himself.