Yes, I would read something written by Hilter because it would give me an insight to his way of thinking and why the Holocaust happened. The mind works in mysterious ways so it can be fascinating.
Not if he wanted to brainwash his readership. There must have been that going on, there always is which is why I avoid certain sources because I want to keep myself pure from that sort of indocrination.
And besides it's depressing when any group of people are marked out for death, wether it's considered in their 'best interest' or not.