That's because your bumper sticker argument either commits a logical fallacy or is not really relevant.

Depends on how you define the words "you" and "free", but even being generous the "you" in the premise is necessarily collective (since you as an individual are in fact free to live elsewhere) while the "you" in the conclusion implies the individual.

Thus your argument is:

If you are not permitted to vote to remove your state from the union you yourself are not free.

In this case, you have to explain why the premise leads to the conclusion. Your "fact" is an argument, and your argument is missing a premise.

Until you provide one, you do not have a complete argument.