Regarding the OP, I think people use the word Nazi too much without knowing what it actually means. Equating ridiculous things like anti-vaccination with an overwhelmingly devastating socio-political movement like National-Socialism is inaccurate because not even Hitler was that crazy (dude believed in a few conspiracy theories about Jews)
Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you