Of all the weird or incomprehensible Rashis, this week's Parsha had a doozy. One of the sons of Shimon was Shaul ben HaCanaanit. All of the other sons of the tribes are mentioned only by name, but this particular one is singled out as "ben HaCanaanit". Rashi says "This is Dina who had relations with Shechem (a Cannani). She did not want to leave his house until Shimon promised to marry her." Presumably, he complied, resulting in Shaul. Besides the obvious fact that Shechem was dead, why should she not want to leave his house? So let's say that this discussion took place before Shimon killed Shechem, aside the fact that according to mefarshim, Shimon was 13 at that time. First, why is SHE a Canaanit? She was forced, according to the Chumash? She was the daughter of Yaakov and Leah. Second, if she wanted to stay, making her a Cannaanit, why does the Torah say that she was forced? Third, Canaanit could be explained any number of ways. Why does Rashi (ultimately the Breishit Rabba) choose this way of resolving the extra phrase? Rashi, recall, is explaining away questions that would occur on topical logic, the kind that a small child would be capable of. What is forcing him into this? Fourth, why isn't the sifsei chachamim, the Malbim etc. outraged? they are silent. (If you know a Mizrachi or Chizkuni on this, please add them, I do not have them available at the moment.)
Possible answers are easily refuted:
1) They could marry sisters, as Avraham said.
This is not an answer, since the question is asked by many on Yaakov marrying two sisters, an issur more easily excused to a ben Noach. It says that the avos kept the mitzvos. But even a ben Noach can only marry a half sister from the father, according to the halacha from Avraham. Shimon and Dina were fully brother and sister.
2) Pikuach nefesh
He killed Shechem and everyone in the city, so there was no pikuach nefesh. The rashi says that she didn't want to leave, not that she needed to be saved. Not to mention that incest is yaharog v'al ya'avor.
On top of this, later Rashi will explain one opinion that each of the brothers married twin sisters that were born at the same time. They all died before entering Egypt.
I am just lost on these Rashis.