" It's just that before the truth could sink in, everyone went home for the summer, where they spent two months reading about how you're a nutcase and Dumbledore's going senile! "
Or Theresa May could have turned around and said, when you accuse me of an act of surrender, you're putting me at risk from a far-right nutcase, or whatever it happens to be.
However, this doesn't mean that we should denounce anyone who is interested in cryptozoology as a complete nutcase, a complete crazy person, and fraud.