By "those things," you're referring to God or the entity running the simulation? Whether it's a reasonable belief isn’t really relevant from the perspective of the theory itself. You’re still going to encounter people who hold such beliefs - and if you want to change their minds, the better approach is to identify and challenge their underlying beliefs, rather than the ones built on top of them.
Belief in a God or a creator is a foundational belief - being against abortion isn’t. That view only logically follows from the prior belief.
Isn’t human intelligence exactly what most people mean by "general intelligence"? It becomes ASI (Artificial Superintelligence) once its capabilities surpass those of humans - which I’d argue would happen almost immediately.