General Discussion
In reply to the discussion: Here's What You Can Buy At The Biggest Gun Show In The Southeast{image warning} [View all]hack89
(39,181 posts)per the constitution and it's interpretation via case law and precedence. So we have a line over which the states cannot cross - they can grant their citizens more rights but they cannot take away basic rights. This is the fundamental means by which states rights are constrained - it is the mechanism by which the federal government gets involved with state laws.
The Federal government has power over interstate issues which is how they justify their laws and regulations regarding guns. Which is fine - gun manufacturing and sales that cross state lines is a legitimate federal interest. Private sales within a state that do not cross state lines is purely a state issue.
So no, state rights are not absolute. But it is not for the federal government to arbitrarily decide which rights the states cannot have.