You're probably correct. I doubt Republican voters would have accepted a relatively poor minority canidate from a broken home with questionable linage.
When Obama wrote "Dreams of my Father", I think he was referring to his dreams of his father, not his father's dreams. Once he met his father he was clearly disappointed.
Which begs the question of why did he write "Dreams of my Father" long after the last time he ever met his father? Its amazing how far some will go to dismiss the obvious. The fact that many minorities as a percentage of their race are poor, and therefore, vote for the party of welfare, entitlement, racial accomidation, and preference, has no bearing on how the Republicans view minorities. Just because Republicans beleive that blacks have the ability to thrive without racial accomidation and welfare doesen't absolve the democrats from being the party of perpetual black poverty. So as long as democrats can convence blacks that they cannot make it without government assistence and whiteys out to get them they can count on the black vote for years to come. Republicans have nothing to lose and everything to gain from black education and advancement.
By the way, Obama wasn't poor and lived a life of privilage with his grandparents. His mother was poor because she was a politically radical woman who had interests in muslim polygamists despite her privilaged upbringing and wouldn't risk selling out to "the man" for a stable life. Obama went to a private school and as for the rest of his education, well, thats another question the media has failed to vet. No problem doing it to Bush though.