If Craig was to be Satoshi and dumped all of his coins that would be a hard blow. Besides, that would mean that all the bitcoin project had been a Ponzi scheme all along.
You goober.
Even if Craig were Satoshi (he's not), and he came out and said, "Fuck everyone, I hate you all, I'm selling all my Bitcoins and going to finance the white power movement." then get this:
Bitcoin would still function just the same as it always did!.
Would the price crash? Sure. But it would still be the original and most popular financial crypto-network. Nothing changes.
That's the beauty of Bitcoin - no one can stop it, not even the original creator.
You're definitely right, and hopefully if this very unlikely scenario were to happen, then hopefully Satoshi would have the descency to put his coins up on multiple exchange websites for everyone to have a chance at owning them. If the real Satoshi wanted to go full on "fuck you" mode, he would put his coins up for auction which would probably get a stupid high premium on them because these bitcoins are exceptionally rare... Which brings us to the fungibility issue again. Since these coins can be traced back to the birth of Bitcoin itself, people see these coins as more valuable since it hasn't touched any other wallets/scam sites/mixers/etc. I think this would cause more of an issue and hence a decline in price.