Brownsville Texas

You say you " Then why are the Socialist Democrats of today able to claim the Civil Rights Platform? Why do the Democrats have a 90% support of the "black" community?", well do a little research dude! Both the Dems & Reps have transformed. The major transformation for the Reps in relations to African-Americans in American was their alienation of the black community over the last 100+ years. Incident like the Brownsville Affair:

"...The black community, which had largely supported President Roosevelt before (due to Roosevelt hosting Booker T. Washington at a White House dinner, and Roosevelt's occasional condemnation of lynching's), began to turn against him. Even worse, news of the discharged soldiers was withheld until after the 1906 Congressional elections, so that the pro-Republican black vote would not be affected."      http://en.wikipedia.org/wiki/Brownsville_Affair

The major transformation for Dems along this line was the break between the northern and southern Democrats over the civil rights movement, which led to southern Dems converting to the republican party or assimilating with the northern Dems.

The claim that it is liberal bias controlling history text books is ludicrous when you realize that for decades the conservative school boards of Texas [the largest book purchasing block in the country] has controlled what goes into text books.