A background check is not a presumption of ignorance.

We have a right of free movement, but that right is curtailed in all sorts of ways. We can't waltz into the pentagon. As for licensing for operating vehicles, I think you're playing a semantic game here. In so much as driving is a right, any limits as to who can drive is a restriction of that right. What sorts of things they can drive are a restriction of that right. To say otherwise without backing it up is a classic wuf hand wave.

Regarding your military argument: the military is a class of people who has (in times without the draft) willingly given up some freedoms and in turn gained others. Drivers are also a class of people who have given up (much smaller) freedoms and in turn gained others. What's the difference?

This wasn't the right of Congress I was referring to. Congress has the right to declare war, to impeach, etc. My point being here, we have a system of elected paternalism, and you seem opposed to it. I'm curious if you're aware of the ramifications of you convictions: essentially the whole system falls apart-- if you are aware, then I'm curious what system you propose replaces the current one.