Harry,
Calm down.  From 1865 to the 1950's, the Jim Crow Deep South voted Democrat. Blacks couldn't even vote.  Then Richard Nixon came along with his "Southern Strategy" to gain the white vote in the South.  Southern whites were upset over LBJ giving blacks the right to vote and even Truman for integrating the military.  Remember Strom Thurman and the Dixiecrats?
Much like Trump, Nixon appealed to white supremacists and white racists.
So now the base of the Republican Party is mostly Southerners and the base of the Democratic Party is young people (think Bernie supporters), suburban women, and minorities.
Moderate Republicans like Senator Corker are quitting.  Corker is the one who called Trump "unstable".
I see Roy Moore, a lawbreaker, is your kind of senator.
Concerning FDR, hindsight is 20/20.  And 2 wrongs don't make it right.