You cannot refute this logic, & have never even tried to do so.
Nows your chance. - Do it.
They have the power to prohibit that which is not restricted by the USC, and that would rule out guns.
"The emunmeration in the constitution of certain rights shall not be construed to deny or disparage others retained by the people".
Ninth amendment, - backed up by the 14ths language against state deprivation of property without due process. -- Arbitrary, 'majority will' prohibitions cannot be used to circumvent due process. Constitutional amendment would be required.
Thus, you fail twice in your version of logic. Try again.