How do you know that it was the main reason tho? BTC is already on downtrend before that news spread. Besides that, It will be so absurd to sell now your BTC while you are in loss. You will never suffer a real loss unless you sold your BTC. BTC will regain again it's price within this year and will set new ATH. Price dump always happened during the first quarter of the year while ETH pump during this period. This happened yearly so this is just a normal occurrence on crypto, Price will be back to normal soon.
Yesterday the price is still stable around $11k. but after the bad news came then the price fell below $10k. it may have little effect on the bitcoin market. but it's true what you said that bitcoin has been in the downward trend since some time ago and there has not been a recover yet. I agree with you that it's stupid if you sell your bitcoin right now. you will lose a lot if you sell your bitcoin when market conditions like this. do not let your fears take over your mind dude. yeah I also hope the bitcoin price can return pump soon and make a new ATH