It's not as simple as saying it is the owner and not the dog.
Dog breeds historically were primarily bred for behavioural traits herding/guarding/fighting/gun dogs/hunting/lap dogs etc. etc. so of course, that is going to influence the way they behave. People failing to realise that is one of the main reasons that people end up with inappropriate dogs in their homes. It's not as simple as big dogs are harder than small dogs. You really have to consider what a dog breed's purpose is or historically was.
That's not to say that owners are not responsible, of course. If you have a more challenging or potentially dangerous breed of dog then you need to put extra effort into socialising, training and managing them to reduce risk. Obviously, all dogs need some effort.
It is both the owner and the dog that matter in combination. Nature and nurture. You cannot put it all on one or the other.
Given that there are relatively few XL Bullys compared to other breeds, the statistics below are pretty damming. I would not be comfortable with my children going to a house with one and I'm wary when I see them out and about. Fortunately, they are not at all common where I am.
Fatal dog attacks 2020-2023
29 January 2020 Staffordshire Bull Terrier and Mastiff cross
13 September 2020 Chow Chow-German Shepherd cross
5 February 2021 Staffordshire cross
2 April 2021 American Bulldogs (2)
8 November 2021 American Bully XL
22 December 2021 American Bully XL
10 January 2022 3 British bulldogs
6 March 2022 Husky[105]
21 March 2022 American Bully XL
28 March 2022 Rottweiler
15 May 2022 Cane Corso[111]
23 May 2022 American Bully XL
15 July 2022 American Bully XL
10 August 2022 American Bully XL
3 October 2022 American Bulldogs
3 December 2022 American Bully XL and Cane Corso cross
12 January 2023 Unknown Unknown,