Fortunately, those who wrote Virginias ordinance of secession said explicitly what they had in common with the first 7 states, citing oppression of the Southern slaveholding States as part of the justification for its actions:
The people of Virginia, in their ratification of the Constitution of the United States of America, adopted by them in Convention, on the 25th day of June, in the year of our Lord one thousand seven hundred and eight-eight, having declared that the powers granted them under the said Constitution were derived from the people of the United States, and might be resumed whensoever the same should be perverted to their injury and oppression, and the Federal Government having perverted said powers, not only to the injury of the people of Virginia, but to the oppression of the Southern slaveholding States.
So yep, we have it on record. Your ancestors renounced the United States and abolished the U.S. constitution so they could uphold the "right" to own fellow beings as property and treat them like animals.
You must be so proud of that "heritage".
Whereas, in addition to the well-founded causes of complaint set forth by this convention, in resolutions adopted on the 11th of March, A.D. 1861, against the sectional party now in power in Washington City, headed by Abraham Lincoln, he has, in the face of resolutions passed by this convention pledging the State of Arkansas to resist to the last extremity any attempt on the part of such power to coerce any State that had seceded from the old Union, proclaimed to the world that war should be waged against such States until they should be compelled to submit to their rule, and large forces to accomplish this have by this same power been called out, and are now being marshaled to carry out this inhuman design; and to longer submit to such rule, or remain in the old Union of the United States, would be disgraceful and ruinous to the State of Arkansas:
When asked by a group of Yankee soldiers why he was fighting, the Rebel replied, “I’m fighting because y’all are down here.” —Shelby Foote
A "right" which the United States protected for "four score and seven years" and which remained legal in the North until 1865.
What sort of hypocrite tries to denounce a conduct that they themselves engage in?
That the *Union* fought the war over slavery is a demonstrable lie, yet it is a lie that comforts the people who did the murdering and destruction, so it has become a popular lie.
You need to grow up and recognize that the *UNION* did not invade the South to destroy slavery. They invaded the South to destroy economic independence from the North.
The North fought the war for money. They fought the war to HANG ON TO ALL THAT MONEY THEY WERE EARNING FROM SOUTHERN SLAVERY.
(3/4ths of the trade income going to New York was created by Southern Slavery.) 
The Union fought the war for greed, and then claimed after the fact that they were fighting for some moral good.
No, it was sheer corrupt greed, and they murdered hundreds of thousands of people to satiate their need for power and money.
Look at the money evidence. Stop listening to the propaganda and start counting the dollars going to the North from the South.