Ben - I was just being a smart ass. I never said SCHSL was the "Public" league...because "technically" it isn't.
You do have to wander into the realm of "interpretation" though..and ask yourself. Can Bishop England or CC join SCISA if they so choose? Yes. I believe they could. They have all the characteristics of an Independent/Private school. While..I don't know many Public schools that are allowed open enrollement(Magnet being an acception..kind of) OR ESPECIALLY religious affiliation. Pretty sure that one wouldn't go over too well. So..yes.. technically BE, SCS, and CC meet all those requirements to participate in SCHSL play..but what we're all talking about here..is are those requirements "just".. is their participation..or their advantage over their classification "fair" ..and "fair" and "just" are not defined in bylaws or rules.
On the point BDad11 is making.. I would reference you to the thread about this from earlier in the year. In particular, the argument of Hanahan HS (which is located on Daniel Island with Bishop England) ..it isn't quite as simple as urban vs rural. There are many factors..
It's pretty simple to me though.. if you have the capability to have students from all over the COUNTRY..then you have an advantage over ANY public school. And if you truly want to up your level of competition.. you won't be in a region with Garett Tech or whoever it is BE plays in region.