Except they were against the law in this country up until 1969. NINETEEN SIXTY-NINE. Like, WITHIN MY LIFETIME. Yes, it sounds amazing that we would have such laws, but we did.
I noticed you avoided the issue of how interracial relationships freak you out.
Nobody is going to "make your kid gay" because they acknowledge gay people in school.
My dad was an 18 year old kid who got drafted, and was thrown into a meat grinder. (He was a combat medic). Probably watching his friends get blown up during Normandy and the Battle of the Bulge had an effect on him, as did liberating the Concentration camp at Nordhausen.
Despite all that, he came back, started a family, worked very hard all his life until he died of lung cancer at 56 because some corporate douchebag told him the asbestos he was working with was perfectly safe.