If you think the typical 1911 being sold today is 100% what JMB “designed and engineered” you’re fooling yourselfWhen you initially load the pistol, do you have the trigger pulled to the rear? Do you ride the slide forward? I hope not.
When someone has their mind made up about something like this, no amount of evidence to the contrary will change that. If you want to treat your firearms like delicate flowers that might possibly, if the moon is in the right phase and you stand on one leg, maybe could break; go for it. Do what you want with your own guns, I don't care.
The part I care about is when people - who are merely parroting something they saw on Youtube and operating on feelings - want to badmouth and trash talk gun owners who do not subscribe to their version of what seems right.
The 1911 was absolutely designed and engineered to operate to allow the slide to go forward under its own power without damaging itself - whether chambering a live round or not.