Sarcasm truly is the lowest form of wit, doubly so when you’re in fact wrong.
Do you really think ICBMs are difficult conditional on being an entity with the infrastructure and degree of expertise and experience in both launching stuff to orbit and bringing it down from orbit (not just from a suborbital trajectory) that SpaceX now has? Ballistic missiles were first developed and deployed by Nazi Germany. Before transistors were invented. They were already developing ICBMs capable of reaching New York. The war just happened to end before they managed to deploy them.
Oh, sure SoaceX could do it. Right now, they cannot. And yes, guidance systems for multiple warheads, single warheads are a thing of the past, is not easy to get right. At the very least, it is a major development project.
Do you really think ICBMs are difficult conditional on being an entity with the infrastructure and degree of expertise and experience in both launching stuff to orbit and bringing it down from orbit (not just from a suborbital trajectory) that SpaceX now has? Ballistic missiles were first developed and deployed by Nazi Germany. Before transistors were invented. They were already developing ICBMs capable of reaching New York. The war just happened to end before they managed to deploy them.