I am not saying you should lie or withhold information. My point is that a consumer needs to make themselves informed when making a purchase, as not everyone has the same moral compass as we do.
I think at this point if someone buys a Desert female with no clue to the infertility issues, then that is an issue on their part as well.
Now, when they become super cheap and are being sold off as pets, I could see someone just buying the pretty baby BP, and they should be labeled as what they are from the seller: infertile.