I'll posit that globalization is the great equalizer in absolute cold-blooded fairness, where a hardworking person across the world can take your job (or vice versa).

Protectionism on the other hand creates job security within but reduces absolute fairness.

For instance, if a new law came out tomorrow which said "all computer programmers must be over 6 ft tall to be employed", I imagine wages for our tall friends would all increase by a whole lot, but a lot of us would be out of a job despite our skills.

Protectionism like that, but instead of a height limit, it's the logo on your passport. Also arbitrary compared to your ability to do the job.