". . .but I have not read many complaints from the Federal supporters here."
Frank, your observation may have something to do with Yanks returning to their homes to find (with very few geographic exceptions):
o Family farms that had not been destroyed.
o Farm land that had not gone to seed.
o Live stock that had not been slaughtered or consumed by foraging enemy forces.
o Businesses that were still in business.
o City/County governmental offices/records not destroyed.
o No occupying enemy forces.
o City/County/State offices held by northerners, not Southerners.
o Students being taught by northerners, not Southerners.
o Pre-War Schools and churches still functioning
o A currency that had not been devalued to zero.
o Railroads that had not been completely destroyed.
o Not nearly as many visible signs of stark poverty among the people.
o Grandparents and great grands who, with the exception of the usual natural causes of death, were still alive and kicking.
o Family members who, despite the War, were still reasonably healthy and able to function in the performance of every day tasks.
o . . . and more, too numerous to list
Frank, in all honesty and without resorting to "yes, but . . ." - might this help explain to you the absence of complaints from the northern supporters here?