In one way or other you cannot avoid the SQL builder, this ORM is building it in the user's code base.

I believe in ballance,

you need the query builder for simple queries (that makes most of your queries)

but the complex queries should be also supported (even if they are not portable)

We have written exactly this kind of ORM https://github.com/holdfenytolvaj/pogi

It saves you a lot of code writing, but is not taking away the power of postgresql (however it is anchored to postgresql)