There's two kinds of hoarding happening here: fear-alleviating and profit-seeking, which allows the profit seeking form of acquisition to be possible. Several weeks ago, it wouldn't have been feasible for someone to scoop up the entire market. Profit-seeking acquisition is however both a self fulfilling prophecy for the fake headlines about insufficient production, and a means by which the people seeking these products to alleviate fear have their fears justified.
So is your solution "good on them, they're taking advantage of people's fears to help make the rumors true?" Just what price do you think toilet paper should be right now in stores?