I don't use toolbars in Rhino at all. Every time I update Rhino 5, I have to spend a while removing toolbars to get back to the basic, minimal interface that I prefer.
It would be really helpful to have a 'Remove Toolbar' > 'All' option, so I don't have to go through and remove each toolbar separately.
I'll add to this that the 'Are you sure?' dialogue seems both unnecessary and painful in this context. Perhaps toolbars should be approached like the tabs in a web browser: they could quickly be opened and closed as needed.
Hi Benjamin- if you do not want any toolbars, the simplest is to run the Toolbar command and in the dialog's File menu, just close all the toolbar files. Does that do it? Here is a macro as well: