Einstein's relativity violates the constancy of the velocity c of light!

 How do we have to epistemologically judge a theory  that wants to explain the physical world to us by the constancy of the velocity c of light, while the theory itself contradicts the constancy of the velocity c of light?
 
Physics needs a fundamental change because Einstein's cannot be a realistic theory... 

My motivation

A simple understanding of physics, which is based on logical aspects and not just on mathematical formalism. Einstein’s relativistic physics that postulates that one can influence the inertial mass of matter or the speed of physical processes (“time”) by observing another inertial frame is actually ridiculous. Because the relativistic mathematical approach of relativistic physics enables us to get usefully and numerally precise results of in nature observable phenomena, relativistic physics is nevertheless generally accepted today. This can only be explained in such a way that most physicists subordinate their logical reasoning to their mathematical formalism. 

A pardigm shift takes place in physics

Simplification brings physics back from a subjective  mathematical pseudoreality to objective reality.

Quantum mechanics postulates that quantum objects are already influenced by the pureintention of researchers to examine a certain quantum phenomenon, that quantum phenomenonhave no defined status, until they are measured, that quantum objects being observed byresearchers can change afterward what has already happened to another quantum object before, and that particles can have opposite spins at the same time. Although these imaginations aremathematically well founded, they seem to be quite mystical. At least three unrecognized (orignored) experimental falsifications of fundamental postulates of quantum mechanics arevpresented.