Consider this... The one size fits all just doesn't cut it. Whilst PC might be observed and tick box exercises such as inclusion (gender/eye or hair colour/religion/age/ethnicity et al) are met, it all leads to a dilution or weakening of standards and output and can make team cohesion difficult.
Perhaps a fair way is to offer opportunity to all but select or build on ability. Even then you will probably get someone who whinges that 'no-one in that team/group looks like me'. Well that's life and life aint always fair and yes it's a form of discrimination... against those that don't measure up. The current education system is open to all, but not everyone makes the grades. Like it or not, in most aspects of life there are winners and losers - perhaps harsh, but true.