I don’t see any similarity other than the impulse.
Well let's look at it then. Since the beginning of the year, i've learned things about the Civil war that I simply didn't know about before.
In 1860, 3/4ths of all the value of US exports to Europe came from the South. Only 1/4th came from the North. To clarify this point, the 5 million US Citizens in the South created 75% of all outgoing trade value. The 20 Million US Citizens of the North only created 25% of the outgoing trade value. (Yes, that surprised me too.)
Incoming trade is directly proportional to outgoing trade, because Europeans must send in money and products to pay for the material they buy from the US. This means that ~75% of all US Imports arrived to pay for Southern products.
Since the US Government ran entirely on tariff's at that time, it is reasonable to point out that the 5 million US Citizens in the South were paying for 75% of the US Government, while the 20 million US Citizens in the North were only paying for 25% of it. (It was actually more lopsided than that, but it's easier to calculate it with this simple method.) In Truth, it was the Slave labor of the South which was mostly paying for the US Government, and the economic trade activity in the North.
The North loved the economic activity produced by slaves which made New York and Boston wealthy, (They were getting 40% of the value of all export products from the South) but they were constantly haranguing the South for their differences in morals. So far as the Southern citizenry was concerned, this situation is very analogous with your comment:
It seems the citizenry could live with the wealth transfers, but not the cultural throat forcing.
The South was paying for most of the government, and was creating vast amounts of economic activity in the North, and they could apparently live with paying more than their fair share, but they had over time become increasingly incensed at all the efforts to attack their morality.
Which brings us to this comment of yours:
The USA is ripe for break up. Courts and Urban dwellers are in open revolt against the heartland where all their revenue comes from.
The exact same dynamic existed in 1861. The more populous Urban North and the less populous and more agricultural South were in open revolt against each other. Most of the government's revenues were coming from the South.