His money is tied up in his companies, which are crashing. Tesla stock is dropping steadily, and the only reason it was making any money at all was because of EV credits, which go away in the Big Beautiful Bill. That's why he hates it so much. It dooms Tesla, which will be bankrupt within two years.
Now he's threatening to decommission the only American spacecraft that goes to the Space Station. That gives the government the excuse to cancel all contracts for Space X, or even confiscate it.
Kill Tesla and nationalize Space X, and he's got nothing left.