Might check that definition.   I hold a bias toward protecting children.   I hold a bias in being a Giants fan.   I hold a bias for people with a great laugh.  Some might hold a bias toward running/health, other for Nutty Bars over Twinkie's.    "prejudice in favor of or against one thing, person..."  *Just highlighted and let my computer dictionary define it.

Do you have bias per your own definition?    Personally I have lot's of bias's, but not many have irrational antipathy, (except for hating the Dodgers - but that's a requirement of being a Giants fan.  lol).