No one is "trolling" you, you are calling someone providing facts with which you disagree a troll.
There is nothing "defective" about the iPhone 13 screens, the same complaints were made about the iPhone 12.
However, if you feel differently, Apple is the arbiter, so contact Apple Support directly for next steps you can take:
Contact - Official Apple Support
Alternatively, have your phone examined at your local Apple Store:
Genius Bar Reservation and Apple Support Options - Apple
You do not need a screen protector but it depends on how you treat your phone.
Apple leaves it up to you rather than raise the price to include one as Samsung does.
Honestly, I don't know why anyone goes without; if you really don't like them, then you're knowingly taking a risk by going without.
It's like not washing and waxing your car; you don't have to, but then if the paint fails your auto maker won't cover it.
As far as the iPhone "2" is concerned, yes, the screen is slightly more scratch prone.
Glass can either be harder - more scratch-resistant but more likely to shatter upon impact - or more shatter-resistant but slightly more scratch-prone.
Since there is nothing you can add to prevent a screen from shattering, but you can add an inexpensive screen protector, it's obvious which is the more cost-effective choice.