I also hope that you realize that the law of supply and demand won't be repealed by this, or any other, proposed law. If this law passes and several hundred thousand legal machine guns are put on the market, prices will drop. That $2,000 gun will be going for $500-$1,000. And no, I don't own or sell machine guns - frankly I'd be happy to see the supply increase and prices drop, so that maybe I could afford one. But I'm still against this proposal, and any other one that will register weapons that are not presently registered.
I think our views on gun laws are very similiar, but I also believe in making lemonade when life hands me lemons. I can't wish away every single gun law instantly, but I can work for gradual rollback, just like the gradualism the gun grabbers afflicted on us.
"Shall issue" carry laws are not as good as Vertmont's "no questions asked" law. But they are a great improvement over "might issue (if you're an important liberal)" law. The word is starting to get out that "shall issue" works, and gun laws are based on a pack of lies. More people with legal NFA weapons telling their stories will also help.