It would appear that Israel depends on an armed perimeter at its borders in order to assure public safety.
Hopefully, they will see the folly of their ways, and reconsider their current circumstance and status.
Once Hamas had broken through the perimeter, there was no way for police, or public authorities, or civilians to defend themselves.
"You learn more from your failures than you do through your successes" - Hopefully an unfortunate lesson learned the 'hard way'.
If they don't learn from this experience and change their behavior and laws, ..it will occur again.
Obviously, that didn't work. Every Israeli should be armed.