It seems to me the derivative work issue is no more an issue with GPL-licensed stuff than with any other licensed stuff.
True, but in the case of propietary stuff you pay for the permission to redistribute the library (and perhaps also for the right to create a derivative work to be distributed with it). In the GPL case the only point that matters is the second one, which is very much irrelevant in the propietary case.
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds