I didn't say that it belongs at the same level of abstraction, and no that isn't necessarily implied. It might be even deeper, it might be something in parallel that then interacts at a higher level, we currently don't have the slightest idea.
And there certainly isn't any evidence that it isn't as deep as neutrinos, for example. You assert that there is a "most likely explanation", but there isn't. Nothing is most likely when there is no evidence at all in any direction.
But we know consciousness interacts with the physical universe, so we can say that it's part of physics. We're just trying to locate where. But nothing rules out the subatomic level prima facie. The root-level comment attempted to do something like that, and I am pushing back on that.