Force, you mean like force, as in, a still physical field? Because if it wasn’t physically then the HF Blade would go through it.
Electron clouds aren’t anything special, all atoms have them? Unless your suggesting that aura has no atoms.
And before you say NLF, an NLF would be saying “because Aura hasn’t shown to be cut through by a HF Blade, it can’t cut through it” or “A HF blade would kill goku because an hf blade goes through anything” without any actually to back it up.
Aura is a “manifestation” of the soul, Not the soul itself.
If aura is just “force” then what do we say it is? Basic Energy, like the ones that still have molecules? If it’s tangible, then it has to have, something holding it together, things break because the connection goes snap.
So I’ll ask you the same question I said at the beginning of this. If aura isn’t made of atoms, has no molecules, or is something that raiden wouldn’t be able to touch anyways, why would it stop his sword or any other weapon