You are under-estimating the power of AI tools to dynamically adapt to business needs and fully supplant all SaaS, even SoR vendors. The ERP database (e.g.) is safe. The rest of the app is on the table. It will happen faster than you think.
"If you ask PMs about backend requirements, they will dodge you, and if you ask front-end or web developers, they are waiting for you to provide them the API. The hardest part is understanding the requirements. It's not because of illiteracy. It's because software development is a lot more than coding and requires critical thinking to discover the requirements."