I know some coworkers that sold BTC today, they are real casuals, they got into BTC because they heard it went up a lot, they don't know even to set a local wallet so they store their coins on Coinbase or wherever the fuck they buy at.
Well, they sold today at at the dip near the $4000 double bottom.
The irony is, these casuals are the ones that are always complaining about how it's unfair that BTC is distributed in the hands of few whales, YET, they are the ones that constantly panicsell and give their cheap BTC back to these same hands they are complaining about, because guess who is profiting the most on these dumps: whales. They buy lots of cheap BTC.
If you want whales to stop having so much BTC, don't panic sell or you will keep feeding them. Just focus on your own portfolio and keep stacking BTC on the dips. In the long term, we will win.
It really depends on what your perception toward bitcoin is. If you see bitcoin as investments only for short-term, then withdrawing them right now might be the better choice to prevent any further damage from happening. But this may result on a loss on your part due to the initial investment that you made might be higher compared to your pay-out roll. On the other hand, if you treat your bitcoins as long-term investments, then withdrawing them on a later date might yield you income higher than your initial investments. This now may result on a profit greater than early-investments due to the returns made. Both investments requires determination, patience and risk-taking to properly profit from your money.