There are soooo many myths being peddled about the XL and other bully breeds. They're truly misunderstood. If everyone knew one, they'd realise how wrong they are.
For example there's a well known myth about them being nanny dogs, which has no basis in reality. In reality these dogs kill and main children not infrequently.
There's a myth that it's the owner, not the breed. When actually, in many cases of maulings/killings the dog was raised from puppyhood to adulthood within the very same family they turned on. Of course bad ownership and an unknown history increases the chances of an attack too.
There's a myth that they're gentle giants who wouldn't hurt a fly, maligned due to their appearance. In reality they're the current outcome of years and YEARS of breeding dogs for fighting. It's their innate nature to not show any signs before an attack because that would warn the victim. They will happily wag their tails during and after an attack, because they're doing what they and their ancestors are bred to do.
Not all of these dogs will snap, but when an XL bully snaps you may well lose your life. When a daschund snaps, the outcome is quite different.
A quick google of reports of attacks from XL bullies will show the absolute devastation these animals can wreak on humans and other animals alike.
You can adopt one and they might be safe their whole life. You might get lucky. But adopting one is like putting a loaded shotgun on your dining table. It might not go off, but if it does someone is off to the hospital or the morgue.
I don't hate these dogs individually, I feel sorry for them. They're not best suited to family home environments, that's not their nature, yet they're put in them and then tragedies happen. I'm in favour of neutering all existing bullies then allowing the breed to die out while the remaining dogs are in adult-only homes with people who understand the risk they're taking.