Why Would A Former Slave Praise Slavery?

TNC posts on "Clara Davis, circa 1937, waxing nostalgic about her days of bondage in Alabama." Dreher adds:

It shocks our senses to encounter a former slave praising slavery,but it's not that hard to understand, if you think about it. Why dosome people in, say, the former East Germany pine for life undercommunist dictatorship, which was a kind of slavery? Because they missthe sense of security it provided. Yes, you were miserable, but so waseverybody else you knew, so in that sense, you knew...