If you are talking about the drug smuggling boats, they are not civilian vessels. The drug smugglers have been classified as terrorists. It is not an unlawful order, on the contrary they are defending the US as 100k Americans have been killed in a single year by these drugs. They have also seized billions of dollars worth of cash and drugs from these criminal organizations, some of which is used to buy off politicians, police and judges. This is why they are crying about putting a stop to this because the money that keeps them in power is being cut off. In fact the 16 boats that have been stopped and the one submarine probably total $1 billion in drugs alone, not even counting everything that has been confiscated in the US.
This is just like the Lord cursing the fig tree and it dries up from the roots and withers. This is what is happening.
If you cut the connection from the drug lab to the US then the entire operation in the US will wither and die just as the drug lab in Venezuela will also die.
What these congressmen and women did was akin to crying fire in a crowded theater when there is no fire. You are not protected from prosecution by the "freedom of speech", you can still be held accountable for speech that is designed to cause harm.