Much like environmentalism today ending slavery in the late 1700s and early 1800s was general social movement. It was condemned in the British Parliament, denounced from Protestant pulpits, debated by all levels of society. It’s evils were written about by women’s’ antislavery leagues, and drilled into school children. In 1832, Parliament spent 2 million pounds sterling, about $3 billion today, to shut down the last slave plantations in the British Empire in Mauritius. In York, now Toronto, in 1832, there was an active Protestant antislavery movement, who then turned their attention to America’s pernicious slave culture. We never hear of them do we.