I guarantee they’re not indistinguishable. Do they have creases on the shoulders and sleeves? Pretty much all of the knock offs have the crease and is one easy way to tell.
I used to collect authentic and game worn jerseys until people kept selling fakes that “look exactly like the real thing, can’t tell the difference” but you can and easily.
Idk how many I’ve spotted at highmark over the years that had patriots numbers and letters. 🤦🏻♂️