Comments of chapter undefined of Fate as an Alchemist

He said that other beings except Humans do not have a soul, and because of this they cannot use magic, but this is not so, it is directly stated that only demigods and half-humans used to possess magic, and pure-blooded people did not possess it before they appeared (artificially or naturally, I don’t quite understand ) magic circuits. In addition, there is a Buddhist system of souls, and the nasuverse is strongly inspired by the Chinese and Japanese Buddhist ideas about the world, there is no soul there as in the Christian sense, there is Anima and Akasha.