Cross breeding imo is wrong,the rescues are full to bursting point not just through cross breeding but also irresponsible thoughless breeding.

Cross breeds are still likely to have inhereited health issues as there are no dogs/breeds that don't have genetic conditions.

In the present climate it is in my opinion dangerous to cross the bull breeds,you could end up with a "Type" looking dog,which could be seized under the DDA.
Breeders who do cross breed are Irresponsible,it indicates to me they very rarely think of the health & welfare of the dogs & are usually only interested in the money such a litter will bring.