The onus lies on those who claim that the vast majority of a given scientific community is wrong about their field of expertise to make their case.

If you think physicists are probably right about the foundations of quantum mechanics without you understanding the basics personally, fine. If you don't understand how a jet engine works or how air flows over a wing at high speed, but are willing to fly, Nobody can know everything. Claim they're wrong, then better be prepared to prove it, or look like a crank.