You absolutely do have a right to use and sell GPL software. But you might be conflating your rights to the software with your rights to specific trademarked terms.
Consider the wording that Red Hat includes in their trademark policy:
“Nothing in these Guidelines is meant to limit your rights under the terms of a free and open source software license. Trademarks and copyright are different rights, so regardless of what rights or permissions you may or may not have to use the Red Hat Marks, you always have all your rights under any applicable free and open source software licenses.”
To my point, you also have nominative use to Disney and Microsoft marks. You could have a “Disney VHS repair shop” or a “Microsoft products technical support shop”.
