John Browning invented the 1911 Colt .45 auto to be safe using only the handgrip safety.
Glock has a number of safety features built in, one of which is the protrusion on the trigger that acts as a safety.
Once again, the gun is only as safe as the person using it.
No matter how many safeties or safety features are built into the gun.
The Glock has but one safety with a chambered round. You don't pull the trigger or something accidently pulls the trigger. That's it. Trigger, boom!
Neither are failsafe, but the 1911 has more built in "safe". You have to pull the trigger And the grip safety must be depressed, at the same time. .
You will lose this argument. The 1911 is a safer gun.
Putting the safety on the trigger is like putting the brake on the gas pedal.
Or as the Colonel says, it's like writing the combination on the door of the safe.