I will not blame you, since it seems you spent a lot of time on this project.
What does this project actually solve? It seems like you are trying to re-implement ISP’s router, just being open source.
From my understanding, it’s either user who has no idea how stuff works and will not look into this project, or user knows enough how this stuff works and will use OpenWRT router/rpi or Mikrotik. I don’t understand - why would someone pick your project over RPI/OpenWRT/Mikrotik router?