@Relativisticcucumber Yes. And so there is a need, say, for the spin-half portion to be antisymmetric, so that when the orbital part is symmetric "due to being in the same orbital state", the fermion system is still acceptable.
@Relativisticcucumber only in the form of "these states have already been occupied", which is not possible to communicate faster than light. The proofs surrounding these are quite intricate and Feynman famously asserted that he could not explain this to a child.
@Relativisticcucumber the spin statistics theorem is the only thing that enforces which set of particles obey BE stats and which set of particles obey FD. Trying to separate the behaviour (of FD v.s. BE stats) away from spin is thus somewhat futile. But yes, you can easily consider some spinless yet FD stats obeying nonsense, if you want to consider them theoretically.
Anyway, this is also why a popular modern thinking is that all these quantum weirdness are due to quantum fields. It is not waves and/or particles. It is that the quantum fields underlying them are the real thing, and excitations on these quantum fields can look like waves or look like particles. No need to keep the outdated dichotomy of classical waves v.s classical particles