Everything you do is an action, especially in government. If Bush does nothing on the border, it is an action. So yes, in this case they are taking an active part on their side of the debate. They believe that the debate itself can cause harm to the effort, thus shutting it down is remaining true to that belief.
It is spin to suggest that they haven't made that point and that their action is just some sort of protest. They have made their point clear. I don't agree with it, nobody seems to be arguing the Declaration angle...
I understand their point. In Class 4 warfare your objective is to get the other side into just such a debate.