To be accurate they are ignoring unconstitutional laws.
A good argument can be made that it is the duty of citizens to resist or refuse to comply.
This is what the `rats call “civil disobedience”.
http://www.crisispapers.org/texts/UCMJ.htm
The Uniform Code of Military Justice (UCMJ) 809.ART.90 (20), makes it clear that military personnel need to obey the “lawful command of his superior officer,” 891.ART.91 (2), the “lawful order of a warrant officer”, 892.ART.92 (1) the “lawful general order”, 892.ART.92 (2) “lawful order”. In each case, military personnel have an obligation and a duty to only obey Lawful orders and indeed have an obligation to disobey Unlawful orders, including orders by the president that do not comply with the UCMJ. The moral and legal obligation is to the U.S. Constitution and not to those who would issue unlawful orders, especially if those orders are in direct violation of the Constitution and the UCMJ.