I believe you are being imprecise with your terms. Understanding how gravity applies on a quantum level is a theory of "quantum gravity". That is a very differe

I believe you are being imprecise with your terms. Understanding how gravity applies on a quantum level is a theory of "quantum gravity". That is a very different concept than a "unified" theory. Your post uses appears to use the concepts interchangeably, although OP took care to show they are different.