Of course we do. All the time. I just watched "Elvis" last night. Did you know that some people were racist in the 1940s and 50s in the US? Shocking, I know.
Again, you miss the point. And I guess I have to dance on the edge of PRSI to prove it.
The issue we have is that while you are stating that the scene is about how people in the 20th century acted while the scene is set in the 24th century (which I have no argument with), the very issue is that the very scene itself doesn't work out well. When you think about the past 7 years of the previous POTUS, Matt Lauer, Bill Cosby, Harvey Weinstein, Access Hollywood, and #metoo, it is more than plain to see that we have advanced well past the TNG scene to where it is all but reprehensible. We are no longer that society, and because of that, the scene has not aged well.
To that degree, with what happened in the 40s doesn't age well, because we have advanced past that. We've advanced passed Guess Who's Coming to Dinner, the N word in all of Richard Pryor's shows, the racial issue in the Jeffersons, where we know better in today's society to know what is right/acceptable and what isn't.
That said, in a historical sense, that scene in TNG is commentary
FOR THAT TIME, but we are no longer in that time. Taking that scene back at that time and applying it to that time, you would be absolutely correct; taking that scene and applying it right now, it doesn't look good, as it could/should make any person feel uneasy. Again, if that were done today (which it was with that journalist), we see what the consequences of that action is.
Again, in historical context, it had a major point (again, which I approve of); but if tried today, it isn't a good look.
BL.