Papageno, I have one nit to pick. You said "Einstein did not like Quantum Mechanics, but he never questioned that it worked nor did he support a rejection in the lack of a better theory.
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Einstein didn't just dislike quantum mechanics, he did not believe it to be a true description of the world at all. He is famous for having said "God does not play dice with the universe". He never could wrap his head around the idea and vigorously opposed the notion of "spooky action at a distance". He essentially wasted the rest of his life trying to disprove QM.

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When I am done here I think I will go create something from metal.