Toilet paper shortage was caused by shift from commercial to residential purchasing, with different packaging/distribution/purchase size characteristics. It's not a convenient item for scalping due to low value per volume (comparing to hundreds of $1K iPhones easily fitting in a car trunk.
One temporary solution would be for businesses to distribute / sell rolls of their no longer needed toilet paper to employees. Employees might not have a compatible dispenser at home, but in a shortage they could put it on a flat surface and peel off as needed. Lack of out of the box thinking...
Businesses did sell their stock. But the distribution lines to businesses rapidly collapsed due to lack of demand (or not in the case of essential businesses), and it wasn't viable to keep them open to just distribute commercial toilet paper.
