Gui will help adoption period there are no arguments that are sound against that.
I disagree completely. There are plenty of reasonable arguments against that, the biggest of which is that a bundled GUI will do nothing to attract adoption outside of the cryptosphere, and almost everyone inside the cryptosphere is already aware of Monero and can use it if they want to.
I'm afraid I can't agree. It will help facilitate that adoption by giving people (including people outside the cryptosphere) something to download that is easier to use. Without that such efforts face a very uphill battle. You could possibly reach beyond the cryptposhere to other sys admis, software developers, etc. who are comfortable with command line tool, but that's a narrow market with little obvious attraction to alternative monetary systems.
A GUI by itself will do little for adoption.
True for
by itself but it is a necessary component of efforts to reach wider.
A GUI by itself will do little for adoption.
What will?
Nothing will,
by itself. There are many pieces that need to fit together, GUI being one of them.