Macho + Genetics snark

Most of the vanity plates I see are from Virginia, both because I do more driving out here and because it’s a cheaper thing to do here than in DC. But I caught this one (barely – sorry for the blur but not crashing is higher on my priority list than getting a good picture) today after realizing what it was as he zoomed by. I certainly hope he picked this because he amused himself with it and not because he thought the gene codes made it any less eye-rolling macho posturing.
Maybe the driver exists only in two dimensions.
Maybe it’s a gay pride thing. Like, he and his male partner… it’s all XY in their house. (And as an added bonus, if it IS a macho thing, think how irritating it must be to him that I would assume it’s a gay pride thing?)
Or maybe he’s missing all 44 other chromosomes!
Or, in what is probably the most likely and the most boring explanation, it’s just a family with ALL BOYS.
If they’re all boys then who did the birthin?