What an incredibly ignorant post. Let's break this garbage down, shall we?
Yes, the Democratic Party was the Conservative Party, and thus the racist party. The Party of traitors. Blacks were murdered in the south just for running for office. Murdered by the Conservative Democrats. The republican Party had the Liberals, the people that love liberty and freedom.
No. Blacks fled the Conservative south for opportunities in the north, where they were allowed to vote. The urban political machines, supported by Italians, Poles, Germans and Irish, among other immigrant groups, also sought the black vote, but this preceded the Great Depression. Poor people voted Democrat. Republicans were not so Liberal anymore by that time.