That knowledge needs active reaching out, otherwise you’ll just be in the “bigotry is when irrational hatred of group for the sake of doing evil” camp, which can be easily converted with “experiences”, “statistics”, etc.

I grew up in a very prejudiced family, and my family liked to scream off their lungs at me when I called them racists, because racism was supposed to be done for the sake of evil like in a cartoon, and them having “extensive experiences” of Roma wrongdoings against them makes it okay for them to throw everyone of them under the bus, for the illusion of safety.