If you honestly want to know how TEs address that question, you can check out the links Dennis provided here: How did sexual reproduction originate and evolve?
You make it sound like belief in God and acceptance of macroevolution as a model are mutually exclusive. That’s not really true. You realize you are on BioLogos, not an athiest website, right? Many people here are pursuing God and don’t have an issue with accepting miracles on faith.