It is wrong to be critical of someone else's dating preferences while having preferences of your own.

Our preferences will not mirror each other. You do like who you like whereas someone else will like who they like.

If a person chooses to limit his or herself to a small pool of dating candidates, then so be it. Just be willing to accept whatever comes out of it as well as be an adult and own up and accept whatever consequences come about from having such preferences and parameters.

Lastly, I honestly do not understand why someone would care who someone else prefers to date, especially if that person does not intend to date the person they are judging?