After GWB's disastrous presidency I think anyone with the last name of Bush will have a very hard time winning a national election in the US for awhile.
I actually agree with you. Bush was a disaster, and the baggage that goes along with that name is going to be hard to get rid of in the short term. After Bush, we proved (twice) that yes, we can in fact do even worse, so the gop's best strategy is to link hillary to obummer, but ultimately that's tougher than linking one Bush brother with the baggage of another.