Non, you're attempting to divert.
The speech does not give us evidence concerning how Lincoln felt about the case, it gives us insight concerning how Lincoln felt about the DoI and the United States government. It appears as though in his view, it was of white people, for white people.
Then why did you say it did?
...it gives us insight concerning how Lincoln felt about the DoI and the United States government. It appears as though in his view, it was of white people, for white people.
Only if you ignore the speech as a whole and only look for those parts that fit your agenda. If Lincoln were concerned only with white men then why make a speech that start to finish, front to back is a condemnation of slavery?