Positive discrimination is unlawful.
Okay, that reference goes quite strongly against my understanding.
The positive action provisions are exceptions to the usual requirements of discrimination law that prevent those with a particular protected characteristic being treated differently, either better or worse, from those without that same characteristic.
Now, is that actually stated in the law? Or is it something that guidance is accidentally inferring from the symmetry of most of the characteristics. Let's dig.
The text in the law I'm familiar with says
"A person (A) discriminates against another (B) if, because of a protected characteristic, A treats B less favourably than A treats or would treat others."
Now, I've always interpreted that referring to a protected characteristic B has (and I've seen plenty of others making the same interpretation) but it doesn't actually say that.
And there is a clause below explicitly stating an asymmetry for disability
"If the protected characteristic is disability, and B is not a disabled person, A does not discriminate against B only because A treats or would treat disabled persons more favourably than A treats B."
which does concur with the interpretation that you can't discriminate against someone without a protected characteristic.
So maybe my thought experiments don't actually work.