> You could very well make the argument that this is justified

Discrimination isn't just "we treat people differently" - we put prisoners in jail, we don't trust liars, we try to keep abusers away from positions of power.

Discrimination is when it crosses the line into injustice - when you're acting solely off hatred and stereotypes.

Since you're conceding that it's justified, it seems that no actual injustice is occurring here.