The failure of conservatives to understand the metaphor.
Very appropriate description of the GOP from a political standpoint.
I don't think they can make a defense, and any authentic attempt at a defense doesn't include cries of racism.
Additionally, it uncovers a real conservative problem- their abdication of any consideration of family formation in this country. This doesn't have to be a racist issue- I mean, surely minorities would be better served if they had better family formation too. But I guess it trends towards something considered racist, since white people are just less likely to have children under these conditions.