Michigander:
Interesting points in your post, however the following are givens, to me.
I submit that the general run of gun control enactments are constitutionally questionable, while those proposed are, at best, idiotic if not a whole lot worse.
As for the BATFE, in it's latest Alphabet Soup Configuration, as I've said here and other places before, The Congress should long since have checked the criminal antics of this mob, phony prosecutions, tampering with evidence and so forth. Unfortunately, they haven't.
So given that laws are on the books, and would, in the proverbial New York Minute, be enforced to hell and back against us ordinary types, who the hell is Bloomberg to warrant what seemingly is a Pass to violate the law, if you will, a Stay Out Of Jail Card? Both the U.S. Attorney's office and the BATFE should be all over him and his hirelings like maggots on rotten meat. The fact that they aren't as yet, and are unlikely ever to be is illustrative of the difference between the way things are and the way they should be.
I think that Romma's post, page 2 is worth a read. Its short, and takes just a moment to read.