Most people attribute leadership to Lincoln and most people know Lincoln was Republican.   The only thing that matches your 95% number is the level of your personal paranoia.   

The majority of Republicans also signed the Civil Rights laws as well.  The attempt to block poor voters and specifically black voters that lean Democrats originated with Bush Jr's(Carl Rove) insight into leveraging the white Evangelical South for voting strength.    The party capitalized on the mostly unspoken bigotry toward blacks in the South and wrapped their intentions in self-righteous religious cloth.    

Now the pretense is dropped and the alt-right becomes the center of Republican politics with their very own President.  I have hopes that Republicans of good will and high ethical standards will continue to push back toward the party of Lincoln.