What are the police going to do? chase down the bad guys with a couple of corgis? Farmers rounding up sheep with a king charles spaniel. 400 sausage dogs in coats heroically pulling a sled across the arctic? And what about guide dogs for the blind? and assistance dogs for the disabled? they all have to have strength and endurance to be of any use. Big strong dogs are a very necessary part of society.
This is a knee jerk reaction to a tragedy, and that rarely makes for good laws. The dangerous dogs act was also a knee jerk reaction, and is not fit for purpose. I agree that a lot of people who have dogs don't understand them and cannot control them. And this needs to be looked at. It is bloody ridiculous that anyone can own a big dangerous animal with no questions asked.
I would go down the route of compulsory training course for the owner followed by a licence to own that can be taken away if the owner allows the dog to be out of control or cause injury. Like a driving test. And it should be paid for by the owner, and be expensive enough to make people think.
Any unlicensed animals could be seized and either rehomed or put to sleep. This could be set up for all new dog purchases or rescues. All current dog owners should be made to apply for a licence, and made to sign a promise to abide by the law. Like the Gtrandfathers rights people retain when the driving licence changed in regard to weight of vehicles you can drive. And it should be compulsory insurance for public liability as well.
Same goes for horse ownership. And I speak as an ex horse owner and current owner of a German Shepherd.