A valid question deserving a valid answer. And to answer that you have to ask the people who launched the war. There is zero doubt that the South seceded motivated by what they saw was a Republican party threat to the expansion of slavery and their power to influence that in Congress. The Confederacy then launched the war for their own purposes. The North was motivated by a desire to preserve the Union in the face of the Southern rebellion and never pursued the war as a means to end slavery. So when you ask if the Civil War was worth it then you need to direct that question to the folks in Richmond and not Washington.
Funny how we now have communists on the west coast trying to secede from a union because the states they’re proud to have forced remain in the union 150 years ago elected Trump president.
Oh please. During the late Obama years and when it looked like Hilary might win this forum was full of talk about how Texas could and should secede. To criticize California for that talk now is very hypocritical.