Removing the non-free section will narrow the perspective of the Linuxworld offered by Debian, and somehow limit a degree of freedom currentlyavailable for Debian users.
I think you have misunderstood the proposed GR. No-one intends to make it impossible to install non-free works on Debian if you wish (although I don't think you should), so talk of "limit a degree of freedom" seems untrue to me. In fact, I think support for all kinds of third-party contributions will be strengthened as a result. The GR merely stops us wasting the project's resources on non-free software.
As to "brand protection" -- well, non-free is already not part of the Debian operating system...
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