This map shows where you people could be very soon if, say, a candidate Huckabee runs against a popular incumbent Obama - or, indeed, if the gradual social liberalization of my generation continues at its present pace, for the discernible future.
More likely that Republicans will begin doing what the Democrats did in the middle of the 1900's and slowly begin "liberalizing". Democrats could soon find themselves with a broadly expanded map and a coalition that includes many more "intolerant" types.