> someone else jumped in
Yes you were wrong, and and that other person was correct.
The point of all of this, is that they were trying to say the following, which someone else clarified as : 'if their use of scare quotes is to express doubt that "overrepresentation" is a good justification for discrimination'.
I think it is pretty clear that the original poster was saying something similar to that.
Multiple other people here are not interpreting the statement how you are interpreting it. So to everyone else, it was clear, and you seem to be the one mis-interpreting.