If I strongly believe that I am Christ or Napoleon, or that I am being spied on by aliens, or that I can broadcast my thoughts or receive other’s thoughts, then I am likely to be considered psychotic, ill and worthy of medication.
If I strongly believe that I have many personalities in one consciousness, I will be offered psychotherapy.
If I strongly believe that I am a woman born in a man’s body, I will be considered a person with gender dysphoria and offered surgery and hormones.
If I strongly believe that I am part of a superior race, then I will be treated as a social misfit.
If I strongly believe that property is theft and advocate communism, then I will be treated as a political misfit.
All of these cases are based on strong beliefs that do not concur with majority beliefs. Note that none of these cases involve actions beyond stating unacceptable beliefs.
How do we justify such varied responses to problems of belief.