No, gougers working completely independently can achieve a similar, regrettable end.

Doesn't matter if he bought all or some. If he is attempting to profit off of a disaster, he will be seeing a fine or jail time in plenty of states.

I think we're talking about two different things. I'm talking about whether or not a price gouger provides the service of making some product available on the market, albeit at a higher price. I feel that fact is indisputable and I personally find that valuable. You seem focused on whether or not you consider this action of making something available to me is moral/legal. That's a different question altogether. One which I'm explicitly not commenting on.

Your position is moot. Without the emergency, there would be no incentive for the gouger to source and acquire the product. By acquiring the product, the gouger removes the product from the market for those who are following ethical guidelines, so he's not providing a service at all. You can't disentangle the moral or legal aspects of this just when it suits your whim.

Your position is moot because gougers are not the only ones buying up supply they don't personally need. The gougers price the hoarders out of the market.

Should for-profit grave-digging be illegal too?

The fun thing about a lot of people dying is that the government will take care of the bodies for you. Try another strawman tactic, my dude. That one missed the mark.

A strawman is an irrelevant argument, but this one is perfectly relevant: A grave-digger makes money in the event of death, it needn't be during an epidemic, "my dude" (or whatever patronising, PA phrase you prefer)

If people shouldn't profit off disaster, why profit from any misfortune?