How bad were things for the colonists in the 1760's? The various taxes were a nuisance but it was the idea behind those things that led them to revolt...and really that was also a civil war between England proper and its subjects.
You have a laundry list of things you say are going great right now and ask why people would want to fight. My question to you then would be why if things are going so well is there a huge push from the "Progressive" (I put in quotes because I think that is a misnomer) wing of one party to change so much right now? From additional government programs in your self described time of plenty to a complete overhaul of how this country's history is viewed (straight down to a b.s. theory pushed by an idiot reporter for one of the nation's most influential newspaper).
Things are great. Why the rioting when Trump was elected? Why did we need a "resistance" that claimed to be in control and able to thwart the political will of half the voting populace? Now after the election when people think that a faction of those who basically run the country (and we aren't just talking the government) helped to steal it, they are crazy. However, it was
bragged about. It was discussed from Day 1....before Day 1 of the Trump presidency. The largest public squares in this country are run by the left and they pick and choose what is true with "fact checkers" that one of them was forced to admit are anything but.
That is just politics. We haven't even gotten to the major social upheaval. IN 2008 Obama was against gay marriage. Less than 14 years later, not only do we have that but we also have one party that has pushed so far on that and related topics that we now have teachers at school pushing pronouns on children and a man threatening to break women's swimming records because he changed his name and took some different hormones after having gone through puberty as a guy (thus obtaining all the benefits that testosterone gives to an athlete...particularly one competing against biological females.) The race scab has been picked. Statues of founding fathers were getting yanked down in the summer of 2020 and there is a fight about how that topic is to be approached in elementary schools. The list goes on and on.
And I will end this to say that from the side of the aisle I occupy, the "Progressive" scolds are basically religious zealots when it comes to the topic of masks, race, sex, gender, and just about anything else. They are pushy. They cannot stand that you would have a difference of opinion. When the topic comes up and you tell them you know that you disagree and you'd rather not go there, they cannot let it go. They
shun like the Puritans. They threaten your job when you get out of line by tracking you down and hounding you in the public square (Twitter, Facebook, etc.). Every argument that is made in that article on why it is a good idea to hate those who do not vote like you has a counter-argument on the other side. "They are taking away our bodily autonomy." Well, you think killing babies is the highest sacrament and the bodily autonomy and forcing medical decisions on people stops when it comes to vaccines doesn't it? "Well your lack of a vaccine impacts me." No, with the virus being discussed it clearly does not. And round and round we could go with every topic. Threatening democracy or the republic? Says the court attackers, electoral college destroyers, and filibuster nukers.
So why a Civil War talk? Because we hate each other. All this "pushing for change" has morphed a sizable portion of the right in this country from conservative to reactionary. When you are wanting to keep the status quo, you tend to do that through the system and eschew more "in your face" tactics. When you want change, that looks more messy. Pushing for change used to be an endeavor almost wholly owned by the left. So it was mostly them doing the rioting, protesting, "organizing", etc. around pushing for changes. Well, the pushing went far and fast enough that people were convinced that pushing back was the only response. As the salon article makes clear, the left has nothing to gain from the right and the right is starting to catch up to that thought process. Why the talk of Civil War? See the Salon article. If you don't value me as a person beyond a vote and brag about it, don't be surprised when that hate is returned. And if 2 people in a marriage hate each other, what is the likely outcome of that marriage?
And when you get to the root of this, you have a laundry list for why I am at fault as well. And neither of us will ever truly agree to the others framing of the discussion so how do you move forward from that?
Finally, I don't think things are going as great as you are trying to pretend either.