Saving the union so the feds could tyrannize the population 150 years later? No thanks. This union sucks. Actually it’s an empire now.
You’re welcome to leave anytime (sooner is better!)
President Washington called the USA "our empire" by which he meant a good thing.
Word definitions.
Since Washington's time the U.S. acquired many territories, converting most to States, freeing others, I.e., the Philippines.
None were treated like traditional empires did.
Unless you count current territories like Guam & Puerto Rico, the U.S. is not an "empire", except in the fever swamps of certain imaginations.
If you hate the country so much you can always leave.