“And why wouldn’t the Colorado authorities be enforcing state laws? “
Why must they enforce every law passed? You should read up on “checks and balances” and the history of the United states and the US Constitution. We are not a legislative dictatorship.
If they don't want to enforce it then repeal it.
You should read up on checks and balances and the history of the United states and the US Constitution.
I've read both and am very familiar with the concept. What's the point you're trying to make?