"Silly" 30-round bushmaster? Really? You know an AR-15 is just a semi-auto version of the full-auto version that soldiers carry right? If it is so "silly" why is it the largest and longest deployed infantry weapon ever (with the possible exception of the AK-47)?
Militaries must be really stupid. You should go consult with them and offer your suggestions as to what lightweight, reliable, easy to use, and lethal weapon system you prefer. I'm sure all the branches of the armed services would like to know.
By the way, my firearms are stored unloaded in fire-resistant gun safes that are either bolted to a concrete floor, or installed in the wall of the house. I can get to my upstairs weapon in under 30 seconds, and my kids do not have access to ANY of my firearms.
I follow all the rules of gun ownership, and my wife and I are doing quite well thanks - as are millions of other responsible gun owners.
I'm way more likely to be killed in a car accident, and my kids are WAY more likely to be killed by the pool in the back yard, yet none of us is ready to give up driving or swimming.
Your risk analysis sucks.