The permit system is pure racism, it is a holdover from poll taxes.I don't necessarily speak for WW, but I don't believe there is hostility towards CC, there is hostility over the fact that there is a legal distinction between the 2 and that it makes no sense.
It makes me laugh every time I'm at my house and I'm OCing, then I go out for a smoke and put on my 3/4 length jacket while making the joke, "Welp, now I'm illegal but only if I step into the street." It's really absurd. I often show people the difference between legal OC and legal CC and they always laugh and don't believe me until I cite specific laws. Same with vehicle carry.
EDIT* But you ARE taking the CC argument personal. Concealing is hiding. There is no shame in that. I see no reason to argue to the contrary since concealing is by definition hiding.
I support CC, I just don't support a permit system to do so. I believe in the REAL CC, Constitutional Carry.