Can anyone give me understandings as to why that won't happen?
Current holders won't be letting it happen, these who own large amount of bitcoins are the only ones that may do a move to decrease its price... no wonder these who bought at high prices...
That may actually be true. You need to modify that statement slightly though. Current holders with a vested interest are highly motivated to attempt to keep the bubble from popping as much as possible.
You need to remember, there are roughly a million stolen bitcoins being controlled by people that have no vested interest in maintaining the price. A large percentage of the entire economy is controlled by people that don’t give a shit about bitcoin. Satoshi has over a million bitcoins that will eventually enter the market. Millions of bitcoins are also controlled by people that mined bitcoins at the very beginning when they were worth almost nothing. These people can sell at any reasonable price and become famously wealthy. What incentive do they have for waiting 20 years to sell? They’re not going to wait until they’re old and can’t enjoy the money.
The current group of venture capital and private equity fund investors with a risk-seeking attitude are clearly crazy. Their whole world can come crumbling down around their feet because of the huge group of people listed in the previous paragraph.