It is a little embarrassing for Ancestry.com to have run this ad. For it is true that many mixed race couplings during and before the Civil War were based more upon power relationships under slavery than true love. That doesn’t mean that there never were such love stories but missing the point will indeed grate with many watchers.
This is thus not the wisest piece of PR ever:
As is pointed out:
The ad is part of a campaign by Ancestry showing stories from the past to pique viewers’ curiosity about their ancestors.