You’re not! At least not because you said Suburban Pubs reminisce over lily white school districts. Some of course do, and I say this on the good authority of having overhead them doing so; and if they were calloused enough and comfortable enough to do so in my presence, I can only imagine the sorts of comments made outside of it.
You simply spoke honestly about something you may have observed or overheard, as I have on many an occasion. Why anyone would want to turn the tables on you for it, I don’t begin to understand. People are anxiously bored and fretful. I mean this whole North Korea thing is utter madness. So why not distract oneself by randomly accusing people of racism and bigotry.