I don't really understand what you're saying.

If you're saying "reproducible builds are reproducible", then that is obviously true, but the question is what is the benefit?

Some people claim that the benefit is that there will be less incentive to threaten developers with violence, and I'm saying that's nonsense. If you cut through the nonsense, there are some modest claims that are true, but doing reproducible builds properly is very complicated and the benefit is negligible.