Look I'll get right down to it. I know Bruce Wayne is... well.. out there. I understand he's an extremely paranoid guy who spends his days acknowledging all the horror something or someone could do, such as the Justice League. So he puts a plan in place, just in case they ever go rogue and become a threat to mankind. I understand all that. What I don't understand is Bruce's recent "1% chance" mindset.
In the comics, Batman has contingency plans for everyone. Seriously, I mean everyone. His villains. His allies villains and even the allies themselves. Batman finds them all to be potential threats, because Batman was so caught up in his own paranoia, that he didn't realize his own self righteousness. Now I love the character of Batman and he's my favorite character in all of comics, but I've never agreed with his apparent mistrust of everyone and everything.
"Sure, Clark, we can be friends, but I've got a bundle of kryptonite if you go rogue." - Batman's mindset
I think though that there's a big difference between if and when. Batman has always said "if you go rogue" or "if you become a threat". He's ready for the day things may go to hell in a hand basket, but he hopes that day will never come.
However in Batman v Superman: Dawn of Justice, Bruce Wayne is acting on the "1% chance" it will happen. Nearly sticking with comic book Batman's mindset, but then he tells Alfred this:
“He has the power to wipe out the entire human race and if we believe there’s even a one percent chance that he is our enemy we have to take it as an absolute certainty, and we have to destroy him."
Wait, what??? A one percent chance?! Those are some pretty slim odds there, Bruce. Because Batman isn't just preparing for what could happen, he's already convinced it will and that he must eliminate the possibility of a threat before a threat arises. This goes against Batman's boy scout approach "be prepared" and falls more in line with HYDRA's evil plan in Captain America: The Winter Soldier!
"Ever since S.H.I.E.L.D. was founded after World War II, Hydra has secretly operated within its ranks, sowing global chaos with the goal that humanity would willingly surrender its freedom in exchange for security."
HYDRA believes that security could be had and all you have do to is give up your freedom and fall in line. They even have drones programmed to eliminate or kill those who are even be presumed to be threats. On that basis, you may as well kill everyone and eliminate everything. This concept is quite flawed, yet is being used by our governments today. The idea that removing dangerous items will make us safer simply doesn't work. Anything could be dangerous and the way that both HYDRA and apparently Bruce Wayne now view the world is quite concerning.
If we think as Bruce does, we might as well say:
"Paper has the ability to cut us deep and if there's even a one percent chance we might fall at such an angle that it would slice our throats, then we have to take it as an absolute certainty."
Bottom line, you have to learn to live with danger. Danger is inescapable, and the sooner you prepare yourself for what might go wrong, the sooner you're life will be that much safer. That's why we have first-aid kits. Preparing for when and not if is no better than living in fear and without freedom.