AI Website Builders vs. Ready-Made Templates: Which offers better long-term scalability and Affordability ?

I have been working in the SEO and admin templates industry since 2017, and I am seeing a major shift in the market. With the rise of AI website builders versus traditional, professional ready-made templates (like those built with Bootstrap, Django, Next.js or Tailwind), I want to know which foundation is better for basic projects in 2026.