We'll continue to see ever increasing consolidation of power at the Federal level, resulting in more corruption and more inefficiency in government, but most folks lives will continue.
People will be less free than their parents but that has been the case for a long time. "Less free" meaning specifically more regulated aka have to ask permission from the government for things they previously didn't need to ask permission for. (They might even be fined for ending sentences with prepositions.)
Our parents were less regulated than we are, they could order a gun through the mail and have it delivered directly to their house as one example; their parents were less regulated than they were and so on back to when the ink was just drying on the Constitution.
But most folks lives will continue - they will get careers and send their kids to school and bitch that the younger generation is going to hell in a handbasket and isn't anywhere near as virtuous and smart and dedicated and free as they were.
There will be riots by young people over various social issues just as there have been forever - young people are idealistic, heavily influenced by their peers but basically naive to the lies of so called "leaders" so they make the best useful idiots. Then they will get married, have kids and worry about mortgages.
There will be no organized country wide armed insurrection by one side or the other (organized riots notwithstanding), everybody is too comfortable to risk everything for some ideal. The exception would be if government finally gets so arrogant that they directly threaten the livelihoods of the vast majority of people. Even then, only 10% maximum would actively participate although a much larger percentage would passively not interfere and a few daring radicals would post memes of agreement with The Cause.
There will be economic ups and downs just as there have been forever. People will get through them. Look at Europe - they are even more regulated and taxed than we are yet they they continue to have careers and kids and those kids grow up to have careers and kids. They had a disagreement with each other about 80 years ago which left much of that place in total ruins, yet here they are.
There might be a war between nuclear powers but I doubt it unless by accident OR some incredibly power mad despot starts one. If that happens we will absolutely see TEOTWAWKI and the aftermath of that is anybody's guess. Civilization would have to rebuild starting from South American or far northern Canada or somewhere.
Just be aware that I suck at predictions so it's probably still best to gird your loins, load your magazines, stockpile food and medicine and be ready to kill everyone you met.
You make some salient observations. I still say that the Republic was lost after 1860, or even after Marbury v Madison when the federal judges asserted their 'right' (privilege IMO).
