If anything, the Federal government is overly distracted bringing the slow parts of the country kicking and screaming into the 21st century and by those same parts randomly derailing it.
But anyone ever want to secede again, I won't object.
As to not complaining about a possible future secession... You also think it's a federal obligation to bring the "slow parts" of the country "into the 21st century". I'll venture that anyone who makes that sort of mental investment in pharisaic priggishness has more to lose, ego-wise, if the "slow parts" do better outside the union than inside.
In fact, I'd be willing to pay for them to leave. Even willing to fund a wall on the Mason-Dixon line if they wanted one when the got independence.
And the first world part of the country wouldn't have to do such 'priggish' things as ending Jim Crow or endlessly fighting disenfranchisement. And those who feel oppressed by such outrageous intrusions as teaching evolution in schools, would have their own country to move to. Why they could have their war with Iran and a president who's testosterone levels are announced on the Dr Oz show while the rest of the country could move on. Everyone wins!