I agree Steven. The idea of some kind of phychological "test" to qualify for gun ownership is a VERY open door for gun-control government bureaucrats to create a profile based on questionable objective definitions as to what constitutes "mentally heathy enough to own a gun", thus giving the government great powers to deny citizens their constitutional rights under the 2nd amendment. It is a clear violation of due process, but I'm sure we will see the usual gun-control zealots pushing for it along with every other scheme to destroy the right to bear arms. A Blessed Christmas to all this day!
Given what has happened in the past, it is not even outside the bounds of reason to foresee a subjective ordering that states that they do not deny the 2nd Amendment except on the basis of felony or insanity, and then define sanity as not wanting a gun.
In other words, the bearing of arms could be wrapped up in a Catch-22 similar to Joseph Heller's invented dilemma; you have to be "sane" to bear arms, but the desire to bear arms is considered proof of insanity.