Bitcoin holders who have 4,000,000 Bitcoins purchased before 2011 for $100 or $200, they have the Bitcoin market.
When they sell, bitcoin is going to $2000.
Bitcoins purchased before 2011 cost less than a dollar each, not $100-$200. Remember that a $20 pair of pizzas cost 10,000BTC in 2010.
Anyone holding since then is unlikely to sell more than a tiny amount if they absolutely must sell, maybe a couple of hundred coins if they needed a couple of million dollars to buy something.
I seriously doubt Bitcoin will ever go below $6k again.