I'd file it under affirmative action [1], which is not illegal in most countries/states (on the contrary). Lots of commenters here simply cite single paragraphs from anti-discrimination laws but what they don't understand is that the laws often allow organizations to correct bias by giving preferential treatment to underrepresented groups. The logic behind is that the majority group (e.g. white caucasian young males)…
Quota based hiring is explicitly illegal in the US (Gratz v. Bollinger)