Fanaticism
A fanatic is someone who can't change his mind and won't change the subject.
Anonymous
However disagreeable a situation is to you, you cannot get rid of it by indignation.
E.W. Howe (1853-1937)
It is characteristic of theistic 'tolerance' that no one really cares what the people believe in, just so they believe or pretend to believe.
Emma Goldman (1869-1940)
The door of a bigoted mind opens outwards so that the only result of the pressure of facts upon it is to close it more snugly.
Ogden Nash (1902-1971)
There's a whiff of the lynch mob or the lemming migration about any overlarge concentration of like-thinking individuals, no matter how virtuous their cause.
P.J. O'Rourke (1947-2022)