Actually, what IS in the Constitution is that male landowners can vote, and nobody else. It was foolishly amended.
Do the People of Florida have the States Right to end the prohibition of felons voting?
Sure, almost as much as Florida having the States' Right to end the prohibition of Felon gun possession.
You seem a little left-of-center.
The only question is, does the U.S. Constitution extend rights to States under the 10th Amendment that provides a state the Right to extend voting rights to certain felons who have completed their sentence?
This is simply an example of States’ Rights.
What Article of the Constitution was that?