coingecko
El Salvador is only holding very few number of Bitcoin if we are comparing with US, China, and UK. We shouldn't be so worried with El Salvador to sell their Bitcoin, but we must feel afraid that those 3 countries to sell directly their Bitcoin. El Salvador probably won't bring a very big impact on the market, but those 3 top holders must bring significant effect if they decide to sell all their Bitcoins. However, they are competing one another, they won't carelessly to decide losing their financial reserve in Bitcoin.
El Salvador has invested in bitcoin, one day they will definitely sell at a higher rate to collect good profits. When this happens, bitcoin won't die off or multiply more than 21 million, its price will only fall which will still be an opportunity for lots of us to buy again.
Yep. El Salvador must plan to sell their Bitcoin someday. But I'm not sure if they will try to sell all their Bitcoin. I assume they may gradually sell their Bitcoin, they will also try to have their Bitcoin reserve as well. Sure, it won't be the last day of Bitcoin industry when El Salvador begins to sell their Bitcoin. It is just a normal activity in crypto market. 