I understand your emotional response. But, it doesn’t change the reality...you CANNOT conflate the two.
The best you can do is assume, as your response demonstrates.
“I understand your emotional response. “
It is not a total emotional response. As I said, studies have shown a faster confrontation slows down the shooter and results in fewer bodies, even if the person confronting them is not a police officer and may not even be armed with a firearm.
If the Uvalde police had confronted the shooter at all, even to distract him, there would have been less carnage. If police are going to refuse to act for over an hour, why call them at all? Just wait until the shooter has finished his rampage and then the one person who escaped death by hiding in a closet can call the undertaker to come collect the bodies. Totally unreasonable.
Your position is much like saying, “Even if a lifeguard was at the pool and watching the four toddlers swimming there, we have no way of knowing if he could have saved any of those that were drowning”. Of course we know that isn’t true since lifeguards have saved children multiple times, and unattended toddlers often (and usually) drown when falling into a pool.