Michael Gove talking bollocks, there's a surprise.
He failed to discriminate between the two meanings of the word 'discriminate'. The first is wrong, the second is necessary.
1.the unjust or prejudicial treatment of different categories of people, especially on the grounds of race, age, or sex.
2.recognition and understanding of the difference between one thing and another.
...in the case of firefighters, you simply need to discriminate between someone who can do the required job and someone who can't. Shame the same doesn't seem to apply to politicians.