Confusion about Stream Entry

How is the fetter "Identity View" destroyed by confidence in the triple-gem and ethics ([\[DN 16, see "Dhamma-Mirror"\]][3] )? The concept of identity view also seems to be a bit fuzzy. In [\[SN 55.21\]][1] the stream entrant Mahanamo wonders about his future abodes. I assume that Mahanamo was familiar with the term Sotapanna and its implications. The buddha assures him that by his ripened confidence in the triple gem and his steadfast ethics, he is saved. I make the following conclusions: 1. "I am worried about **my future births**" does not imply identity view. 2. If I doubt my attainment of SE, I do not disprove my attainment. Point 2 is mentioned, because often I see the argument "you worry about sotapanna, then you are not sotapanna due to identity view". By the above reasoning, I know that identity view must be something else, as it seems to tolerate some thoughts about **myself**. I also conclude that there are two sufficient conditions for stream entry: 3. No self view, no skeptical doubt and no clinging to rites and rituals implies Sotapanna[ \[MN 25\]][2] . 4. Confidence in the triple gem and good ethics implies Sotapanna,[ \[DN 16, see "Dhamma-Mirror"\]][3] . If point 4 describes the "conviction follower", then Thanissaro Bikkhu disagrees about 4, saying > [...] conviction-followers are apparently those who are following the path > to stream-entry but have yet to reach the fruit of stream-entry. This leaves only point 3 as possibility to stream entry and contradicts the Dhamma Mirror, given by the Buddha.