Trump’s got no good options
The problem with having power and wealth for so many years: Surrounded by sycophants, he's come to believe everyone and everything will bow to his will. Iran will not bow. It is exacting tribute. This so spoiled man would rather burn down the house (our house) than submit.
Notice how he has brought up the afterlife over the past year. I think he is realizing he will be entering a realm he cannot control. That's why he plays with his ballroom, arch and reflecting pool. These he can control. These give him a sense of security. For a man like Trump, it must be terrifying to be approaching 80 and have your body falling apart. No matter how many doctors he hires, he can't buy immortality.