The “ethics” of following laws stem entirely from the social contract. Both sides agree to a set of rules because it’s fair or in their mutual interest to take part in society. But when one side violates that social contract (causes a constitutional crisis, ignores the rule of law, etc.) then all bets are off. If you blindly follow the rules while the other side is actively ripping them up, then you’re at best a sucker and at worst complicit.