Why? Because the NRA is okay with negotiating away free speech.
I am a member of both organizations, but I will be thinking long and hard before renewing my NRA membership when it is due.
Hopefully, before then, the NRA will realize that it represents its members, not the organization itself. If the NRA is willing to make deals with an anti-First Amendment Congress in order to maintain itself as an institution, who is to say they won’t do the same for the Second Amendment?
Unlike the NRA, GOA is pro-Constitution, not merely pro-gun. So, if you are a member of the NRA, consider joining GOA as well, and perhaps letting your NRA membership lapse if they don’t clean up their act.