In the future SIMs are probably going to be some kind of signed data blob instead of a physical card. But I guess breaking off antennas will always be a thing if you have the skill set to identify it.
Luckily we only need one person with the right skill set to identify the antenna or other offending component to be removed and document it online, with pictures and instructions :-)
Attach a string between here and here. Attach another string between here and here. Drill a hole where they intersect.