You may be right, but I think referring to this perspective as “Crackpot stuff” is entirely too strong a criticism. Wormholes and flying cars are “crackpot stuff.” But regarding this question it feels like you are reaching for the strongest possible language to rebut a position you simply disagree with.
We really are in a moment where serious astronomers and astrophysicists are evaluating validity and correctness of some of our most fundamental assumptions about the universe, to a degree that we simply haven’t seen since at least the mapping of the CMB, and perhaps longer.
Umm, wormholes maybe. Flying cars have existed for the better part of a century. The fact that nobody has successfully brought one to market yet means that you and I don't have them. But humanity certainly does.
We really are in a moment where serious astronomers and astrophysicists are evaluating validity and correctness of some of our most fundamental assumptions about the universe, to a degree that we simply haven’t seen since at least the mapping of the CMB, and perhaps longer.