Absolutely nobody hates meritocracies, and it's intellectually dishonest to claim they do. If you're referring to things like encouraging diversity or CoC's or the other usual things that some personality types REALLY enjoy getting worked up over, the people that advocate them advocate them because they want to establish better meritocracies in the face of implicit biases. Biases that stand in the way of meritocracies (similar to things like nepotism, etc.).

You can disagree with them that those biases exist, or that that is a way to accomplish a more perfect meritocracy, but you can't claim that they are motivated by a desire to make anything less of a meritocracy. You can only claim that they're going about it the wrong way and give really thoughtful and coherent reasons why you think that's the case.