https://en.wikipedia.org/wiki/Commerce_Clause
https://constitutioncenter.org/the-constitution/articles/art...
Your ideology is leaking.
(There are different playbooks for passing laws that curtail personal rights, by arguing to do it at both the state and federal level, or removing federal prohibitions on something and then enacting it on a state by state basis while trying to pass the reverse at the federal level.)
Whenever people bring up "states rights" with objectively false claims, one needs to consider the history of such a claim. It was most prominent in the Secession Crisis and the obvious follow up question is "states rights to do what?" because the answer is "to own people as property".
Google is free.
[1]: https://en.wikipedia.org/wiki/Federal_judiciary_of_the_Unite...
Yes, it was. The Founding Fathers created this system.
Simply use google instead of making up claims.