There is a difference between prejudice and assumption.
Prejudice is when someone pushes their reasoning onto you,
despite their statements. Of which, when it pertains to
self-identity, that being of the person.
It is more than invasive. This is why it is called a hate-crime.
Be aware of this. Only people who are shallow,
they would want to force their ignorance, and therefore with malice,
pushes on their belief on to others.
Kind of like some cult mentality.