Short term yes, but long term we'll see the same idiots currently buying XL bullies, pit types etc, move to different breeds. That move is already happening.
Nothing is addressing peoples desire to own intimidating dogs with poor temperaments, shitty training, handling and housing that leads to out of control and aggressive behaviour.
There is zero going into educating people about dogs, controlling breeding, controlling importation (in fact the Kept Animals Bill that would stop people importing dogs who've had their ears cut off to make them look 'hard', all breeds used by people who want intimidating, scary dogs to train to bite people, has been dropped by the current government in the last fortnight!).
Nothing is being put into policing the current legislation we have either!
So the law that says all dogs should be microchipped at 8 weeks by the breeder - not enforced, not policed.
The law that stated all dogs sold by a third party should be traceable to their breeder - not enforced, on a day to day basis, never was.
The law that states dogs should not be sold by a third party (replaced the above) - rarely enforced except in high profile cases of illegally imported puppies).
The law that states puppies should be over 8 weeks old prior to sale - not enforced. I have talked to FOUR people THIS WEEK, who have bought puppies aged 4 to 7 weeks old. All from commercial puppy farms I am sure.
The law that says you can't cause unnecessary suffering to an animal - rarely enforced in terms of dog training. You can shock a dog, use a prong collar on a dog, yank it off its feet by its throat with a thin 'cheesewire' choke line causing it to yelp in pain but despite this being unnecessary (studies prove that aversive methods increase chances of aggression and cause pain) and it causes suffering (ditto), certain 'trainers' get away with this all the time and owners do too.
We increased the sentencing for animal welfare related crimes - but longer sentences are rarely given.
Animal ownership bans - not enforced and very easy loopholes in many cases (you can't own a dog.. however your wife/son/daughter/brother can... oh, they live with you, oh well!).
Policing and enforcing these laws comes down to local authorities who have nothing left in the budget, the police, ditto, and neither party have the relevant training or experience. And to dog warden companies who in many cases, are spread too thin, doing a shite job of it without appropriate training. I am aware of one company that covers multiple LA's, who NEVER sends their wardens on any CPD courses, they have no experience beyond a 2 day 'heres how to catch pole a dog and chuck it in a van' course, and a 'what might be an illegal breed call a DLO to check' seminar.
We (trainers, behaviourists, rescue staff and volunteers) said over 20 years ago that banning pitbulls and their types would NOT reduce deaths, that those who cause such tragedies will continue to do as they please, continue to breed dangerous animals and would seek bigger, stronger, scarier animals to do so.
We also said at the start of the pandemic that stopping access to dog training, to vets, and the massive rise in breeding anything canine, plus the social media 'dog training alpha males' ... would cause some significant problems wrt dangerous dogs in 2 - 4 years time.
Welcome to 'we told you so'.