It was effective at kicking non-whites out of the country. You know, exactly the thing Trump is doing.

Between 2009 and 2016, the Barack Obama administration oversaw the deporting of a record 2.4 million undocumented immigrants who had entered the United States, earning him the nickname "Deporter-In-Chief" by Janet Murguía, the president of National Council of La Raza.[16][17] According to ICE data, about 40% of those deported by ICE in 2015 had no criminal conviction, while a majority of those convicted were guilty of minor charges.