It's the odds of it happening to anyone's kids, not just my own. To put it plainly (and on topic) it's something that is being used by others to try and take away my liberty and rights. I understand many of you will think that's an absurd statement but it isn't an absurd statement to me (or many, many others). If "you" are going to use something as evidence to try and convince "me" that I should give up something I consider sacrosanct, I think it's very proper for "me" to ask "you" to bring receipts.
People don't tend to want to bring these receipts on this topic because once you start making distinctions like "Columbine/Parkland/Uvalde/etc. school shooting" and "shooting that happened to take place at a school," the odds as well as average deaths are so absurdly minimal that using them as an argument for policy change is clearly just a heartstring tactic, which is where you get people reverting to the, "any death is too many deaths" argument, which tends to bring a lot of applause, and is used to shut down any objective look at the topic.
From what I've seen, if we're talking about a "Columbine style" school shooting, we're talking about something that kills less kids a year than hot cars, and you might remember what my take is on that topic since it's also come up in threads from years ago we've both participated in. This is not the kind of event or data that is going to convince me to give up my liberties (and again, I get you might think that's an absurd statement - but it's not absurd to me).
Frankly, the data available on all gun deaths doesn't convince me (or many, many others) that it's worth giving up this liberty "to stop" (if it even would), so what I flat out accuse the media and many Democrats of doing is taking a highly emotional but exceptionally unlikely event like a Columbine school shooting and using it to basically vilify anyone who disagrees with them and is against gun control. It's annoying, because "you" might as well vilify me for not wanting to close beaches due to shark attacks, or not wanting to force every car manufacture to install sensors because of hot car deaths.
It's also very interesting to me that if you advocate bulking up school countermeasures or defenses, you're "paranoid" but this is still a topic so important that one should give up their liberty for a little bit of safety. Which one is it?