We can interpret this in many ways. He isnt questioning the value of Bitcoin, rather hes worried about the security of holding the coins. The recent Coldcard incident has had a significant impact on crypto holders, and this decision may have been influenced by that.
It is natural to panic in this current situation, but I think it is better to be more cautious and if all his Bitcoin is in one wallet, then it may be a better plan to transfer it to different wallets. Jim Cramer may not be able to keep himself calm at the moment, so he must be worried, so he must take steps and strategies.
Taking strategies is good but the decision to sell is very bad, the decision to sell is bad because the price of Bitcoin is currently very low and he will not be able to gain much benefit by selling at this time. Because the price of Bitcoin will increase further later, then it will be wise to sell Bitcoin.
Or maybe I am wrong. Since hes a public figure, suddenly posting about selling his coins could mean hes trying to manipulate the market. He may want the price to fall further so that he can buy more coins at a lower price.
Maybe this is a strategy, because big whale investors first spread panic and then they decide to buy Bitcoin because the price of Bitcoin is much lower then. Because various investors are now panicking due to the Coldcard hack, so by following this strategy he can take the opportunity to buy Bitcoin, not a bad plan to collect Bitcoin at any price.