It could not possibly be more clear that you have no intention of giving Caleb Williams any of the myriad, laundry list of excuses you give Fields even if they're the exact same excuses about the exact same people.
It's laughable.
If "there are a ton of new faces" is an excuse for poor play, fair enough. It can't be an excuse for one guy and not for the other.
If "there were impactful injuries elsewhere on the roster" is an excuse for poor play, fair enough. It can't be an excuse for one guy and not the other.
YOU'RE EVEN HERE TALKING ABOUT "IT'D BE A MORE EXPERIENCED GETSY"! Like, you've ranted all year about how Getsy is why Fields has been mediocre as a passer in year 3 and you've already decided that even if they keep Getsy, that won't be a valid excuse for poor play by Caleb Williams as a rookie!
If these things are valid excuses, they are just as valid for Caleb Williams as a rookie as they are for Justin Fields after 35 NFL starts.