Because its not a correction, it's a bubble deflating, and before BTC can start a new growth trend it needs to be undervalued and oversold.
You sound so sure of this, almost as if you're speaking about cold hard facts. Except you don't. Undervalued and oversold are subject to interpretation, there is no specific value you can pinpoint when this will be the case. The new growth trend could start from today, or next week. Or never. You don't know, I don't know. And that's a real fact. Too many bulls in denial? That's just your opinion and your point of view.