> 1. OP said strong indicator. It's by no means the only indicator and a state can be fascist whilst still allowing people to leave.
OP said that:
> If you can freely choose to leave then that's a strong indicator that your nation is not fascist.
I'm saying that it isn't an indicator for fascism: there is no country where every person who wants to leave, is unable to (whether it's illegal to leave is another question). Therefore, in all countries, fascist or not, there will be people who can freely choose to leave.
I think that a better indicator would be:
> If no ethnic/religious/politic/whatever group of people are prevented in a legal or physical way to leave the country, then that's a strong indicator that your nation is not fascist.
If you can freely choose to leave then that's a strong indicator that your nation is not fascist.