Big dogs being likened to leopards? Seriously
Is a rottweiler really that different in size, strength and bite to a lepord?
The problem with expensive licencing is it makes dog ownership only for the wealthy. When dogs help people's mental and physical health.
I think all breeds should be looked at based on, number of attacks, size, strength, jaw and trainability. We could then have four tiers, tier one, completely banned. This would be pit bulls, bull mastiffs, akitas etc. Teir two dogs only allowed for working purpose by licences owners, that would be German shepards, rottweilers, doberman etc. Teir three would be larger and or more difficult breeds, like staffs or Great Danes or jack russles, that can be kept as a pet but you need a licence. But nice dogs that have low rates of attacks, are easy to train and good natured, like poodles, shitsuz, golden retrievers can be kept by anyone as a pet.
In conjunction there should be a 0 tolerance on dog attacks. Any aggression and the dog is put down. If it's found you kept a dog that has bitten you would face a hefty fine and criminal record.