People regard ideological self-segregation as legitimate so they don't bother acknowledging it, but other forms of segregation occur that people don't notice or want to admit.
If ideological segregations were made in real life by say having each state and it’s residents align with an ideology then those with unworkable ideologies would quickly fail and be identified as something to be eliminated
Or we get states so internally homogenous and so violently opposed to other states that the result is civil war. There's much to be said for the unideological people who aren't so intent on combat with people who think differently from themselves.
... hence the liberal whining.
Well, yes, she's making a liberal complaint, but is it really so different from the conservative complaint that we don't know our neighbors anymore, interact with them, or have much in common with them?
People are always going to self-segregate into groups of similar people. That can't be prevented, and there's something a little totalitarian about suggesting that it should.
Still, it's a noteworthy development that technologies designed to "bring people closer together" only succeed in putting different kinds of people further apart. Probably that was inevitable, but it could be troubling, given how hard it is to keep countries from tearing themselves apart.
Ideas and ways of thought that aren't economically or socially viable should be singled out and eliminated because the rest of us are all forced to carry it. That would include those that are irrationally violent as well, those states would become like mad max zones in my state segregation scenario haha.
The problem is liberal elites living in tight little enclaves and almost no experience with even middle class people, much less working class people.
They have their values, shop at different stores, eat different foods, and have a political and ethical system that demonizes the middle class’ traditional American and Judeo-Christian values while mocking but officially pitying the working class.