People think technology is "too complicated" and "magic" because they don't try to understand it. That's the problem. The "secret sauce" is in configuration and knowledge of architecture, software engineering, and production engineering, which are all gradually acquirable through sweat equity.

There are plenty of cheap VPSes all over the world where someone can run just about anything live without the costs of GCP or AWS.

Account and identity management is naturally slightly non-trivial, once you consider things outside the happy path.

OAuth is trivial because of libraries.

Hashed database secrets are also easy. Rails is mindlessly-simple. Django isn't bad either. There are CMSes that can provide these too.

The problem is people don't want to know anything about anything. They want something (results) for nothing (free, and without skills or effort).