Well, I think you're wrong. The scriptures are worth discussing to anyone interested in Jesus of Nazareth  and early Christianity. And you clearly have no idea what Biblical scholars actually do.

Your argument is theological, not historical or textual. What you fail to grasp is that your beliefs or my beliefs are irrelevant to the issue of who wrote Hebrews and why. Text and historical criticism is evidence, not theology, based. If you can't compartmentalize that much, you're right, there's no basis for discussion.