Deciding your opinion of the meaning of the constitution clause or amendment take procedure over the Federal courts and using a state power to interfere with Federal government agents is indeed treason and can not be consider anything but treason.
I think you need to learn what treason is.
It is the ONLY crime defined in the Constitution, and has a very specific definition.
From Article 3, section 3 of the US Constitution...
Treason against the United States, shall consist only in levying War against them, or in adhering to their Enemies, giving them Aid and Comfort. No Person shall be convicted of Treason unless on the Testimony of two Witnesses to the same overt Act, or on Confession in open Court.
The Congress shall have power to declare the Punishment of Treason, but no Attainder of Treason shall work Corruption of Blood, or Forfeiture except during the Life of the Person attainted
So, abiding by the Constitution is in no way treason.
See any history book concerning the states claims of being able to nullify Federal laws they do not care for from the founding of the country
As I understand it, the states want the ability to handle tthemselves anything that happens solely in the state, and that does not cost the govt or other states any money.
Since when did the US Govt have the right to violate the 10th amendment.
And if you are talking about the civil war, that was about secession from the union, nothing more.