Learning about family history is a nice pastime and can help in building a vital appreciation for American history and traditions but it can be taken to extremes. That's more an Oriental thing, not so much an American tradition. Just because great grandpappy did something, we should not automatically embrace it. And what if one great grandpa was a reb and the other was loyal to the Union? If you honor one esteemed ancestor's cause, it's hard to venerate the other guy.
"I don't know who my grandfather was; I am much more concerned to know what his grandson will be"--Abraham Lincoln
Personally have ancestors that people are free to lampoon and insult, if they had an odd penchant to do so. Will defend ancestors that have met and with whom have interacted. Unmet ancestors could just be about the same as some stranger, in terms of honor that should be bestowed upon them.
Just as people living today do not deserve honor for what their ancestors did, people living today do not need to defend the honor of some distant ancestors long gone.
But that's just the view of neither a Northerner nor a Southerner, but a western Californian.
What curse do you pronounce upon people who use painfully awkward archaisms and abysmal grammar?