Couple of thoughts:

Not having a brake won’t give you superpowers.
Having a brake won’t prevent most accidents, but might make defending yourself in court easier.
Having a brake encourages irresponsible riding (this goes for me) because you can stop faster you can get away with it.
Not having a brake is not more dangerous than having a brake it is just slower and can be annoying on long descents.
There is nothing you can’t do on a fix with a brake that you can do on one without a brake.
Having a brake and not using it makes not much sense to me. There is no shame in riding with a brake (Eddy did it too).
Brakes look ugly. You get style points for not having one.