One thing I omitted in this post is how Nimrod's name feeds into the midrashim that he was a sinner. THat is, "nimrod" means "let us rebel," and this is the interpretation of his sin given by Tg Yonatan and Rashi, for example.
I focus on different interpretations of "lifnei Hashem" is the pasuk about Nimrod. I discuss a Bereishit Rabbati by Rav Moshe haDarshan that casts Nimrod as a good guy, because he hunted and ate meat. I compare this with midrashim and Targum which casts him as a bad guy for fomenting rebellion against God. And I bring up Ibn Ezra who declares that on a peshat-level, he was a good guy, and "lifnei Hashem" implies that he brought sacrifices to God. I end with a suggestion that perhaps "lifnei Hashem" is a mark of the extremity of his strength.
Plus more. All on the video. (Running time 8 min 30 secs.)