The combination of the Emancipation Act, institution of a draft in which the wealthy could purchase substitutes, and the resentment of Irish immigrants to being treated more poorly and with less respect than free blacks (and a bit of encouragement by the local Democratic Party ... some things don’t change) all combined to foment the worst riots in American history.
Sorry, Proclamation, not Act.
The Democrat Party has been dealing the Race Card for 170 years, and they will continuing dealing it as long as it works. They snuffle the deck from time to time... 150 years ago it was against blacks... 50 years ago, it became for blacks... soon it will be Hispanics and to hell with the blacks.
Whatever it takes to get power and money.