> Because it would either have been horrendously bad engineered, or built by a sadist that wanted to see us suffer on purpose.

or built by someone who understands why the first Matrix failed

> and the world created by most people, left to their choices would definitely be much different to what we experience now.

Even assuming that's true it wouldn't necessarily all be something as low-stakes happy as a preschool cartoon or as wish-fulfillment as an isekai anime