“Democracy” isn’t a one-dimensional issue. How you make decisions (majority vote) is one dimension. But who makes the decision—what group does the voting and is bound by the results of voting—is another dimension. Many countries balance these issues by having different levels of voting. Distinct communities wishing to govern themselves is a nearly universal phenomenon. My country exists because we didn’t want to be in a body politic with Pakistanis. It was our right to decide we should have our own government where we, and not they, voted on the laws that governed us. Dismissively comparing all such impulses to the Civil War is intellectually lazy.

Self determination is a widely recognized political right. If folks in Alabama don’t want folks in California to have a say in their affairs, they have that right. That must be balanced against other practicalities of course. But letting different groups govern themselves is conceptually part of “democracy” just as much as “one person one vote.”

Just because it was tried and "failed" once before doesn't mean that people don't still believe that it can be tried and made to work the next time.

The concept of a split US is not unattractive to a much larger number of people than you might be willing to give credit. There's also the people that will support a movement not because they fully support it, but mainly just because it's screwing the "system" and watching the chaos.

Back in the mid-90s, I was a video journalist covering the Republic of Texas[0] movement to secede (or in their words to recognize the illegality of Texas being annexed into the Union). It was very interesting how it was successfully progressing through the court system, but then went to crazy town with all of the liens, attempting to print their own money, and the kidnappings. However, there were the typical people denouncing their US citizenship and signing up to join to the Republic of Texas. The thing that surprised me was the governments of other countries signed up in recognition of the RoT as a legit government. I get that individual peoples wanting to see the world burn, but seeing governments sign up for it was what got me.

[0]https://en.wikipedia.org/wiki/Texas_secession_movements#Repu...