Earlier quoted context omitted.
I heard a pretty good interpretation of why these questions exist. If you say that you don't plan to commit crimes and then commit one, you have essentially lied on the form. In some cases at least it is way easier for the state to deport someone if they lie on their immigration form. But if the question wasn't there you would have to go through the whole legal process. On the other hand, if you answer yes to this qu…
Why would it be easier to deport someone for lying on a form rather than for being a terrorist?
If I'm a visitor to the country and say the same thing having signed an affirmation that I'm not going to advocate for violent overthrow of the US government it's not a first amendment case, it's a lying-on-immigration-forms case and out I do.