If he signs this bill, he loses my vote. Only two things could subsequently change my mind:
He repeals the 1934 National Firearms Act and makes machine guns legal and unregulated in civilian hands again.
He repeals the 17th Amendment.
You reinforce my opinion of the fantasy world libertarians live in. Much like John Lennon's "Imagine", noble but not realistic. And I assume you mean the 16th Amendment (the power to tax) not the 17th (election of senators)