At least, we can reduce the amount of loss even with selling in this period if we holding good cryptos like BTC and ETH. It less likely to get low and have a good potential to come higher after all bad things blow over.
Yes, if for the time being it's better not to sell first because the price of Bitcoin and Ethereum is in good condition and always has a good increase, and I think people who don't have the chance to buy BTC and ETH when the price is still cheap will feel a little sorry to currently.
In fact, I am seeing today that most of the crypto market is in red (ETH included), so when Bitcoin is rising, alts do follow in the long term but it seems that in the short term of 24 hours when BTC is pumping, everything else is trying but failing to keep up.
I agree, not a time to sell everything just yet, but if anyone needs to book in some profits, now would be a good time for assessment.