When the federal gov't attacks(civil war) some of the states. State rights are suspended "de facto"...
A rational person would conclude by the evidence that some of the states attacked the federal government, not the other way around. You may believe that SC was justified in firing on Sumter, but they did shoot first.
BTW, the Union Army did not invade VA till May 27, long after VA had initiated hostile action against the Union, including attacks on Hampton Roads and Harper's Ferry begun (traitorously by strict constitutional definition) prior to secession.
You are correct, however, that civil war brings an end to civil and state's rights. That is even recognized in the Constitution, "Clause 2: The Privilege of the Writ of Habeas Corpus shall not be suspended, unless when in Cases of Rebellion or Invasion the public Safety may require it." Which it did in 1861.
The South rebelled. They lost. Get over it.
The federal gov't handleing just interstate commerce is one thing.. refuseing an invitation to leave soverign SC territory is another... unless SC was'nt a soverign state.. that is what precipated the war.. That question was exaserbating for servral years before the war..
Same type problem is currently happening... are american unalienable rights secured by God or by the federal gov'ts largess and not rights but privledges... america is deporting God but not illegal aliens.. america is seething, I know I am, and almost everybody I know is too. Not to worry, most republicans are dumbed down so much they don't even know the difference between a right and a privledge and would'nt if/when they lost them. i.e. Sandra Day O'Conner, Souter and a coupla other "PEter principle'd" shysters..
GET OVER IT.?.. NEVER...lock and load.. lead, follow or get out the way...
Lincoln had extended his blockade to Virginia over a month earlier and well before Virginia had voted to secede. Virtually every precedent in the history of warfare considers a blockade to be an overtly hostile act of war. You are also incorrect about the date of the army's arrival in Virginia. The yankee army of 10,000 men marched into Alexandria on May 24th.