> I hate working on unfamiliar Go projects. Copy pasted code everywhere. And everyone builds their own abstractions because there aren't enough.

Arguably, if the project requires lots of abstractions and copy-pasted code, then the project shouldn't be written in Go. Just because you can, technically speaking, write object-oriented code in Go does not mean that it is ergonomic to do so or a recommended use-case for the language. Projects that benefit from object-oriented design should stick to languages with first-class support for it.