The existence of the neutrino was hypothesized long before it was actually detected.
So what in your careful review of the physics literature leads you to the conclusion that the Higgs Boson is a fabrication?
Science has been pretty accurate in their discovery of theoretical sub atomic particles.
My personal favorite is the theoretical Tachyon. A particle that can travel no slower than the speed of light.
As was the positron. The positron is wierder than the Higgs Boson or the nuetrino. The later two were hypothesized to account for observations, the positron was hypothesized, or at least mathematically described, before it was observed, "just because".
Dirac said that he worried more that his equations were beautiful than that they were true. What is more beautiful than a theory confirmed by observation? Than the bending of light measured during an eclipse? Than the discrete nature of the electrical charged observed by Millikan? How must the heart of the first Chaldean to predict an eclipse have jumped when the daytime sky grew dark!