Anyone who relishes any level of freedom and security should not ever accept martial law. It's by far, one of the evilest and most deceitful ways to conduct a war on the people who the ruling class has stolen from for years in order to ensure they can outgun the enemy. We are on the cusp of it too, and some areas are already under martial law. The government has declared war on its own people and they will not give up power willingly. You have two choices, obey or disobey. Neither are good.
In interviews with the Guardian, Democrat Ron Wyden said the federal government's authoritarian tactics in Portland and other cities posed an "enormous" threat to democracy, while his fellow senator Jeff Merkley described it as "an all-out assault in military-style fashion." Keep in mind, that it isn't like the protestors in Portland are being peaceful either. If anything, they are being destructive and the regular citizens, are being restrained from protecting themselves in the midst of so many laws and regulations.