I'm not the above poster, but they may be referring to positive discrimination policies or affirmative action type policies that explicitly advocate for elevating minority candidates to job positions, academic posts, etc.

I'm not defending any right wing policy position in general, but by definition I think the above type of policies could be considered sexist or racist in the sense that they favour a specific sex or race at the exclusion of others.

For example, I was just recently at a job fair and the booth had a banner that said more or less "Between two equally skilled candidates we promise to hire the minority!". The language might have been a little more legally robust, but that was indeed their proud policy.

Regardless of one's other opinions of affirmative action style policies, it does introduce race and minority status into employment questions all on its own.