You know what would've been interesting? If they actually stuck with the "racism was pretty fuckin bad in the 60's"
But after the dude in the elevator and the cops pulling him over, it's never brought up again. Just feels like a committee thinking "well, we gotta at least mention it or it don't make no sense".
There were so many scenes where it should've at least been hinted, like even in the background somewhere: Not being served at the pie restaurant, some kinda public transport debacle, K questioning why he got a smartmouthing black partner in the future, or maybe the cops don't get flashed and get some kinda retribution later on.
Or ya know, just leave it out entirely. Maybe an approachable family film shouldn't include such an uncomfortable subject. Either double down or leave that shit out