Avoiding lengthy wars in the Middle East was always a key part of Trump’s brand, but when the great man changed his mind, the base supported him, even if no one else did. That fact alone should tell you that MAGA is more of a cult of personality than an ideology.
This presents a serious challenge for Vance, who has an ideology, not Trump’s golden gut. Will the base follow him just because he really, really hates the left? TBD.