RE: Can the Human Brain collapse Quantum Mechanics? - Part 1
I am beginning to see that your post is dealing with just the collapse of superposition, rather than the problem of QM itself.
"Consciousness is something that needs to be described with something other than conventional science; classical or quantum physics cannot explain something that isn’t physically there, but definitely does, according to Descartes, exist."
This doesn't necessarily follow, as consciousness being undescribed doesn't mean it can't be described by extant means. Consciousness may have been detected as electrical impulses, for example, but we are at such a crude state of understanding of electricity that we have no ability to saliently describe it other than as an electrical field.
It also may not be an electrical field. Just because we don't know what it is doesn't mean it has to be some kind of entity other than those we already know to exist.
"Inexplicably, the human mind is postulated to somehow break the quantum effects on the particle and measuring equipment to obtain a determinate result."
And, this. I hope you will treat this matter in your post. Without a rational explanation, which QM has not been availed of, the entirety of the field can be handwaved away as voodoo, or misinterpretations of maths.
"Quantum mechanics requires this metaphysical entity for the collapse postulate to work..."
This is why it can be handwaved away as voodoo.
Pilot Wave theory has no need of such voodoo, metaphysics, or spooky action at a distance.