Every _bitcoin holder_, it's not like a country experiencing deflation.
How so? Prices aren't set by the amount of BTC in the wild. A currency has no inherent demand. No btc holder can offer any more btc for goods than before.
Prices are set by the order books, including how many that are willing to sell and to what price. If a large amount of coins are removed from the market, and the buying pressure stays the same, that will lead to higher prices.
If they weren't being sold then, again, the amount available to buy is unchanged.