Interestingly enough, even at the height of this craze, the Asian markets were well-stocked.
At least that's the way here in Germany. While flour, toilet paper, some sorts of canned food and random other stuff is sold out in most super markets, the small turkish shop down the street has everything in stock.
Non-Asian people haven't been raiding them because a) they either never knew or simply forgot these stores even exist or b) because racists think they're more likely to catch covid from anything Asian.