How did laws that ended slavery also limit the rights of free African Americans?

“well,” he says, “there’s excuse for picks and letting-on, in a case like this; if it warn’t so, i wouldn’t approve of it, nor i wouldn’t stand by and see the rules broke—because right is right, and wrong is wrong, and a body ain’t got no business doing wrong when he ain’t ignorant and knows better. it might answer for you to dig jim out with a pick, without any letting-on, because you don’t know no better; but it wouldn’t for me, because i do know better.” the meaning in this excerpt is

He government, which was designed for the people, has got into the hands of bosses and their employers, the special interests. an invisible empire has been set up above the forms of democracy. –woodrow wilson who or what does wilson believe is controlling the us government?

Which controversial political issue of the 1920 is reflected in the cartoon