> What does he mean by “public access to intel”?
It means the public, like our group here, are allowed through the Q team to see intel that is not normally accessible. The RBG and Red Castle/Green Castle references are intel not available to the public except via the Q team.
To the RBG and Red Castle/Green Castle mentions; they are not related. They are talking points, cryptic reports of what is discussed at POTUS level. They are coded to us to prevent blowback of national security leakage allegations.
Yes, in the larger context, Q is affirming a Q proof.
Maybe Red Castle/Green Castle is now code for military funded border wall building.