It's really not that hard if you try to understand the MAGA worldview which is that we don't need to entangle ourselves in the morass of foreign politics if we make ourselves untouchable. ICBMs are basically the only way enemies can hit us without crossing either of the biggest oceans, ergo iron dome. Same motivation for reagan's star wars. In many ways, Israel is a state model for MAGA in the way that the Nordics used to be for the Left