How badly do you think the First Order fears Finn? Do you think they put a hit out on him, because he shows that brainwashing isn’t destiny, that it can be broken, that you can break free, that given half an opportunity 90% of their ranks, the tools they need to maintain control, can–
–change their mind. Strive for something better?
Jedis are terrifying, but they’re born. You either have the force or you don’t. You can kill them and they go away.
But storm trooper with a conscience is a virus that can multiply too fast to stamp out. It makes Finn the biggest threat to the First Order than any Jedi could ever be.
Force is destiny. Finn is choice.