This paper presents nine inconsistency theorems for general relativity theory (GRT), and shows that they ultimately originate from the use of Riemannian curvature and the abandonment of universal invariance (which is stronger than the customary covariance). These features cause GRT to be non-canonical at the classical level and non-unitary at the operator level, resulting under time evolution in catastrophic structural problems, such as lack of invariant basic measurement units, loss of stable numerical predictions, absence of reliable observables, etc. The nine inconsistency theorems are re-inspected via isotopic methods and the related new theory of gravitation known as isogravitation. This new theory offers swift and simple resolutions for all the inconsistencies identified in GRT.
