Not personal reasons. Political reasons.
I'll grant you your cynicism
Not cynicism. Just accuracy.
but I must strongly disagree.
It's your right to do so and I am not going to stop you.
You really should read more history, and I don't mean pseudo-history.
By all means, take your own advice. I reached my conclusions about Lincoln by relying heavily on primary historical sources. Most modern sources give what I call pop history (i.e. the James McPherson brand) and it's almost always tilted heavily toward Lincoln. The historical Lincoln was a politician, not a diety.