In many ways, they are sacred. They are the foundation of the entire art.
No they aren't. The vast majority of what I've learned about kicks has 0 to do with the forms. And that is arguably the foundation of Taekwondo. The other things that I have learned, such as the application/self-defense/ho-sin-sul training that I have done has very little to do with the forms.
I could teach 80% of what I've learned in Taekwondo without ever teaching the forms. In fact, there are a lot of TKD schools that focus 90% or more on competitive sparring or on real-world application, and only do forms as a formality for testing.
The problem I have with your approach is that it puts the forms into cult status. When you make it so that they cannot be questioned or improved upon, what you're really doing is hiding insecurities and ignoring inadequacies. When you oversell them, they won't live up to your expectations.
If you want to start your own art with its own philosophy then that may be different - you'd have carte blanche on the makeup, traditions, and curricula. But as is it, it sounds like a frustrated attempt to shape the art around the student - which you still are.
Maybe you'd find peace in starting a different art? Maybe the forms in that art will speak to you differently?
I've got formal training in Taekwondo, Hapkido, Brazilian Jiu-Jitsu, Muay Thai, and MMA. My TKD training has included the official Palgwes, unofficial versions of the Palgwes, and the Taegeuks. Additionally, I've looked at forms from other TKD styles (such as ITF and ATA), other Korean styles (TSD and MDK), American styles like CKD, various Karate and Kung Fu styles.
In all of them I've seen things I like and don't like. I want to do forms. But I want to do forms that I 100% like.