These Jewish Democrats are being nothing but hypocritical in cricizing Romney's appearance there. As noted in my posts #s 172 and 200, Henry Ford himself was a Democrat. I don't think this entered the mind of anyone on the Romney campaign. However if you're suggesting they were aware of Ford's role in spreading antisemitism in America, but ignored it because they thought he was a Dem, a tenuous conclusion but irrelevant, then they deserve condemnation.
No, I'm not saying it was the Romney campaign that was aware of Henry Ford's antisemitism and decided to go on with their event there because they knew that any criticism would be mitigated by Ford having been a Democrat. In fact, they most likely were not aware of either. And I don't think that that history should be of much relevance to today's Jewish population, because the foundation that owns and operates the museum today clearly does not hold antisemitic views nor policies. I know from personal experience that I wasn't asked about my religion or ethnicity when I visited there myself. They do not practice segregation or discrimination with respect to their visitors.
I'm criticizing the Jewish Democratic organization for even making an issue over this for cheap political gain. The fact that Henry Ford ran for high office as a Democrat and that he never identified (to the best of my knowledge) as a Republican certainly throws the Jewish Democrats' argument back in their collective faces. Bringing up Henry Ford brings up a history of antisemitism within Democratic ranks, but does not taint the GOP, neither historically nor with respect to Gov. Romney.