Habitual stereotyping and pigeonholeing. Preservation of bandwidth at the expense of novelty and justice. Has ill effects even when done without malice.

bald-faced prejudice
when you think it's good to stereotype. Further, those damaged by it, deserve it.
Capital-P prejudice
When your belief system takes too many shortcuts, and your tunnel vision begins to harm others.
minor prejudice
(no such thing)
when you don't think it's hurting anybody
nonpersonal prejudice
failure to age-out the opinion cache. Impairs learning and personal growth.
reflexively judgmental. opinionated