- The Maskana is that he did. But according to that Tanna you have a good point. His Teshuva isn’t considered real my many. So, it still may be that his Tachlis was to do Teshuva, but my proof goes out the window.
- The Chovos Halevavos actually mentions an approach like what you wrote earlier, that everything is predestined and as for the deserving of Schar and Onash, that we cannot understand yet.
- The Gur Arye this week by Vayisrotzatzu Habonim and earlier in Noach by Yetzer Lev Ha’adam says something interesting regarding the inborn nature and Yetzer Hara. He says that they are two separate ideas. The Yetzer Hara is the planning to do wrong while the person’s nature is his liking of any particular behavior.